Saturday, April 9, 2022

Too Busy to Blog!

 American White Pelican - Pelicanus erythrorhynchos

No time to blog this week, but I did want to let you know that the beautiful American White Pelican that hung out on the river for seven days has "recovered" and flown off!  YAY!  When we first saw it, it was hunched up on the shore.  Over the course of a week it started to wade into the river and clean itself, then it flew up and down the river, and then last Friday it flew off downriver!  We haven't seen it since then!  Yahoo! 

Check back next week for the latest natural history news from my neighborhood!

Unfortunately, you can no longer sign up to get my blog via email. Just go to northyubanaturalist.blogspot.com directly. It looks better than the emailed version!

Your questions and comments are greatly appreciated. Please feel free to email me at northyubanaturalist@gmail.com. Thanks!

Saturday, April 2, 2022

Two Great Adventures!

Sandhill Crane Couple - Antigone canadensis

This week my friends Rod and Rochelle and I went on our annual Spring trip to Sierra Valley. Every year we see something unexpected, and this year was no exception!  We were a little bit early for the a lot of the songbirds, but the waterfowl were numerous!  It was a beautiful blue-sky day with a hint of clouds, and lots of water in the Valley! Right away we started seeing pairs of Sandhill Cranes! The pair pictured above were foraging on the edge of the wetlands.  They are mainly herbivores, but will also prey on small mammals, insects, snails, reptiles, and amphibians. Sandhill Cranes are one of North America's large birds. They are approximately 4 feet tall, weigh 10 lbs, and have a wingspan of up to 7 feet!

Sandhill Crane Couple Mating! - Antigone canadensis

As we were driving along, I spotted a pair of cranes on dry land.  One of the cranes had its wings outstretched.  We hadn't ever seen this behavior before so we stopped to see what might happen.  To our complete surprise, the crane to the left hopped up on top of the one with the outstretched wings and they mated!  The mating lasted for just a few seconds, and then the male hopped off the  female!  WOW!!!  Sandhill Cranes mate for life, and probably mate many times during the breeding season.  Although most of the Sandhill Cranes that overwinter in California breed farther north in Idaho, Oregon, and Washington, a dozen or more pairs mate and raise their young in Sierra Valley.  They build their nests out of dried vegetation on small dirt "islands" in the wetlands, or floating right on top of the water!  There are 1-3 eggs laid in a clutch. The incubation period is approximately 30 days, and both the male and female share the incubating.  The young are born precocial (covered in down with eyes open) and can leave the nest within one day after birth! They usually stay together as a family group for 9-10 months.  We'll have to come back in a month or so to look for some young Sandhills!  Now that would be something!

American Wigeon Couple - Gadwall (male)
Mareca americana - Mareca strepera

We saw a lot of ducks in the wetlands!  Most numerous were the Greater White-fronted Geese, and the Canada Geese.  They were all gorgeous!  Here are a few photos of what we saw!  Enjoy!

Ruddy Duck (male) - Pied-billed Grebe (adult)
Oxyura jamaicensis - Podilymbus podiceps

Canada Geese (adults) - Greater White-fronted Geese (adults)
Branta canadensis - Anser albirons

Sage Thrasher (adult) - Western Meadowlark (adult)
Oreoscoptes montanus - Sturnella neglecta

Songbirds and Raptors weren't prevalent, but we did see lots of Red-winged Blackbirds, as well as several Sage Thrashers and Western Meadowlarks!  Such beauty!  


Here's a short video of a 100+ Red-winged Blackbirds singing away in one of the few Cottonwoods in Sierra Valley!  Unfortunately the wind noise is distracting, but the birds sound like a lot of tinkly windchimes!  (To view the video, select the arrow twice.)

American Pronghorn Herd - Antilocapra americana

Around 2:00 in the afternoon, Rochelle spotted a HERD of American Pronghorns in the sagebrush!  WOW!!!  We had never seen this many Pronghorns together in one group! I couldn't get an accurate count, as they were in a sagebrush thicket, but there were somewhere between 15 and 20 individuals!  Most of them looked like females!  Of course they didn't linger, and quickly headed east and out of sight!  They were absolutely amazing to watch!  We couldn't believe our luck!  

American Pronghorn (females) - Antilocapra americana

Pronghorns are not antelopes, and are not related to antelopes, but are often known colloquially in North America as the American antelope, prong buck, pronghorn antelope, prairie antelope, or simply antelope. They are the ONLY species in their Antilocapridae Family, and the only animal on earth that has branching horns that are shed annually. They are more closely related to giraffes than to the antelopes that are indigenous to various regions in Africa and Eurasia, comprising of many species of even-toed ruminants such as gazelles. Many (but not all) pronghorn herds are migratory, traveling long distances to warmer climates in the fall, and back to greener locations in the spring.

American Pronghorn (female - male) - Antilocapra americana

Their horns are keratinized sheaths which cover extensions of the frontal bone. The sheaths are shed annually. Both male and female have these horns. The horns of the males grow up to 11.8–19.7 inches, female horns are smaller at 2.9-3.9 inches. Males have lyre-shaped horns that curve inwards whereas females usually have straight horns. The female's horns are generally smaller than their ears, or absent, and aren't pronged. Additionally males have short black manes on their neck, as well as a neck patch and a black stripe that runs across their forehead from horn to horn. Females lack these black facial patches, but have a small mass of black hair around their nose. Breeding doesn't occur until mid-September to October when males acquire small harems of females. One to two offspring are born the following spring. They are usually weaned in three weeks, but will remain with their mother for a year and a half. What a thrill it was to watch these amazing, wild, native mammals!

American Pronghorn (females) - Antilocapra americana

These beautiful Pronghorns are the swiftest animals in North America, and have been recorded running as fast as 59 mph! They can outrun any predator! Their limbs are cursorial (built for speed) but not for jumping. Fences have had a detrimental effect on their population, as they cannot jump over them. They need to live in areas that are wide open and basically treeless, like Sierra Valley. They feed on a wide variety of plants, especially sagebrush in the winter.

Coyote - Canis latrans

 To our delight we spotted a Coyote close to the road!  It quickly trotted away and out of sight, but I managed to get one good photo!  It looked like it still had its thick winter coat! Coyotes mate in late January and are monogamous during the breeding season. Their dens are dug by the female and can have several entrances and passages that branch out from the main chamber. They may dig a new den, use an abandoned badger or skunk den, or den in a hollow tree or under a rock ledge. The pups are born about 2 months after mating, with 6 pups per litter being the norm. The male coyote brings food to the female during the nesting period, and also helps with the feeding, grooming and guarding of the pups. They eat deer, rabbit, hares, rodents, birds, reptiles, amphibians, insects and fruits.

We had a beautiful day out in Sierra Valley, and plan to return soon!  How lucky we are to have this spectacular valley so close to home!

Sky Lupine covered hillside - inset: Frying Pans, Sky Lupine, Bird's Eye Gilia 
  Escholzia lobbii - Lupinus nanus - Gilia tricolor

Last week I went to North Table Mountain Ecological Preserve with some friends to see the spring wildflowers. It is a flat-topped butte, next to the town of Oroville, Ca., the top of which is capped by an ancient lava flow. It became an ecological preserve in 1993, when Francis Carmichael, a local rancher, sold 3,315 acres of it to the State of California, to be managed by the California Department of Fish and Wildlife. Now it is open to the public.  Compared to last year it was quite dry, and the bloom wasn't as spectacular but still very beautiful!

Horned Lark (male) - Eremophila alpestris

This Horned Lark was foraging for insects and seeds among the dry grasses and forbes when we spotted him. I love their little, black, feather "horns"! These birds are sexually dimorphic, with the male being more colorful. They prefer to live in bare or nearly bare ground, such as tundra, desert, beach or short-grass prairie. Usually they travel in flocks of several hundred birds, except during the breeding season. Right now they are pairing off, mating, and making nests. Nests are made out of dry grasses, rootlets, animal hair and feathers, in a shallow depression on the ground. The female incubates 2-5 eggs for 11-12 days. The nestlings are altricial when born, and are cared for by the parents for 8-10 days after they fledge. The fledglings can run much sooner than they can fly. They are completely independent in four weeks.

Basalt Columns in a Dry Landscape - Canyon Delphinium (inset) 
Delphinium nudicaule

Some areas were exceedingly dry, with flowers growing only in the damp creek beds or shaded forested areas.  Luckily the beautiful vermillion-red Canyon Delphinium was in bloom in the shaded side of a canyon.  Table Mountain is the only place where I've seen these gorgeous flowers!

Lark Sparrow (adult) - Chondestes grammacus

Unlike the Horned Lark, Lark Sparrows aren't sexually dimorphic.  Similar to the Horned Lark they build their nests on bare ground, or slightly above ground in a shrub, in habitats like Table Mountain.  Right now is their breeding season, and males are known to give a female a twig during copulation, which she then flies off with and places in her nest!  3-6 eggs are laid per clutch, and hatch within 12 days!  Both male and female adults feed the nestlings, which can fly within 9 days!  I love the markings and colors of the adults!  Beautiful!

The creek leading to Ravine Falls - Table Mountain Meadowfoam (inset) Limnanthes douglassi ssp. nivea

There was only one creek that we passed that had some running water! We often found large patches of white Meadowfoam flowers filling damp or wet creek beds!

unknown butterfly

There were a zillion insects pollinating the flowers including these tiny butterflies.  I don't know what species they are, but I will submit an inquiry on bugguide.net.

Frying Pans, Sky Lupine, Purple Owl's Clover and Bitterroot (inset)
  Escholzia lobbii - Lupinus nanus - Castilleja exserta - Lewisia rediviva

After several hours of hiking we head back to our car, passing fields of poppies, lupine, and owls clover on the way.  We also luckily found some blooming Bitterroots at the last minute!  It was a wonderful day with friends, filled with beauty from start to finish!  We are SO lucky!

Scarlet Fritillary in the Rain - Fritillaria recurva

Damp Earth Art

We got .10" of rain this week and it was cloudy and cooler. Yay! Anything helps! Please join me in my continuing hope for precipitation! Perhaps our collective efforts may help it happen. I'm going to keep posting rain inspired writings, art, etc. on my blog at dampearthart.blogspot.com. Any submissions would be greatly appreciated.


Wishing for peace in Ukraine and
an immediate end to this senseless war!

What insects are active now that it's warmed up?

What's going on in the Lakes Basin?

What songbirds have newly arrived?

Check back next week for the answers to these questions and more!

Unfortunately, you can no longer sign up to get my blog via email. Just go to northyubanaturalist.blogspot.com directly. It looks better than the emailed version!

Your questions and comments are greatly appreciated. Please feel free to email me at northyubanaturalist@gmail.com. Thanks!

Saturday, March 26, 2022

Signs of Spring!

Common Merganser (male) - Mergus merganser

Just this week, many of the waterfowl that left last Fall have returned to the North Yuba River!  The first ones I saw were the Common Mergansers.  They probably spent the winter in southern California or Arizona.  They will stay here to breed and raise their young.  The males are so striking in their black & white feathers, red bills, and orange feet! 
 
Common Merganser (female - male - female) - Mergus merganser

At first I only saw one male, but within a few days more males and females arrived.  They are primarily monogamous for the breeding season.  The nests are usually made in tree cavities, where 6-17 eggs are laid.  Only the female broods and cares for the young, which are born precocial.

Wood Duck Couple - Aix sponsa

To my astonishment I spotted a pair of Wood Ducks near a male Common Merganser on the river!  I've never seen a pair of Wood Ducks on the river before!  I haven't seen this pair again, so maybe they just flew up from the foothills for the day. Wood Ducks usually live on ponds, marshes, and waterways in the foothills, valley, and coast of California year-round. They are usually serially monogamous.  Like Common Mergansers, nests are made in tree cavities, where 10 to 22 eggs are laid!!! 

Wood Duck Couple - Aix sponsa

Interestingly, a pair of Wood Ducks showed up on the local Joubert's Diggins Pond this week.  Maybe it's the same ones I saw on the river!  Such beauty!

Mallard Couple - Anas platyrhynchos

 One afternoon I spotted three beautiful Mallard Couples on the river!  The males have such brilliant-green feathered heads! They are primarily seasonally monogamous.  Nests are made on the ground in the cover of grasses etc., near marshes, ponds, or agricultural areas, where 1-13 eggs are laid.

Mallard Couple - Anas platyrhynchos

Recently I've seen a pair of these Mallards on Joubert's Diggins Pond as well!

Canada Geese Couple - Branta canadensis

Depending on the severity of winter, about four Canada Geese live here year-round.  Lately, more Geese have shown up.  I heard them making a racket on the river a week ago, so I went to investigate.  There were three geese below the bridge.  Two were obviously a couple, and the third (most likely a male) was trying to lure the female away, I THINK!  The lone male was honking and honking until the other male took off after it, chased it upriver and landed on its back in the river!  The intruding male was submerged by the other male!  I watched the submerged intruder "swim" underwater and surface downstream!  Other than losing a few feathers it looked okay!  From there it flew off downstream!  Now THAT was fascinating to watch!  WOW! 

Common Goldeneyes - Bucephala clangula

The Common Goldeneyes have left the North Yuba River!  They spent the Winter here, but are now on their way to their breeding grounds in the boreal forests of northern Canada and Alaska!  It's been fun watching them this past winter!

American White Pelican - Mergus merganser

A lone American White Pelican was hanging out on an island in the river this week!  It probably spent the winter on the California coast or Sacramento Delta.  It was most likely migrating to its breeding ground in Pyramid Lake, Nevada, when it landed on the island.  Sometimes they don't make it, due to lack of food.  These Pelicans don't dive for fish, they herd them to shallow waters and scoop them up.  The North Yuba River isn't a good area for that style of fishing.  I'm keeping my fingers crossed that somehow it keeps going.  It's not easy surviving out there in the wild.

Yellow-rumped Warbler - Setophaga coronata

Early Birds!

To my delight I saw three Yellow-rumped Warblers this week!  Such beauty!  They probably spent their winter in California's coast, valley or foothills. They were just passing through, on their way to the higher elevations to breed and spend the summer.  They may nest in the Lakes Basin or continue farther north to Canada and Alaska!  Other songbirds will be arriving soon!  How exciting!

Yellow-rumped Warbler - American Robin
Setophaga coronata - Turdus migratorius

Robins arrived here about a month ago, from the coast, valley, or foothills of California!  They will nest here in our area, often having more than one clutch in a season!  Right now there are LOTS of them in our neighborhood!

Violet-green Swallow (female - male) - Tachycineta thalassina

To my delight the Violet-green Swallows are back from their winter residence in Central America!  They nest locally on a cut bank along the highway!  Such beautiful coloring they have!

Arroyo Lupine - Kellogg's Monkeyflower
Lupinus succulentus - Mimulus kelloggii

What's Blooming?

Not a lot of wildflowers are blooming yet, but I'm having fun searching for them!  I'll post more every week as they blossom!  How fun!
 
Grand Houndstongue - Western Rue Anemone
Cynoglossum grande - Enemione occidentale

Plum blossoms in the Rain!
Prunus sp.

Damp Earth Art

Not a drop of rain fell this week, and we had temperatures in the 70's. More rain is predicted for tomorrow and into Monday, hopefully an inch or more. Anything helps! Please join me in my continuing hope for precipitation! Perhaps our collective efforts may help it happen. I'm going to keep posting rain inspired writings, art, etc. on my blog at dampearthart.blogspot.com. Any submissions would be greatly appreciated.

Wishing for peace in Ukraine and 
an immediate end to this senseless war!

What insects are active now that it's warmed up?

What's going on in the Lakes Basin?

What's happening at Table Mountain?

Check back next week for the answers to these questions and more!

Unfortunately, you can no longer sign up to get my blog via email. Just go to northyubanaturalist.blogspot.com directly. It looks better than the emailed version!

Your questions and comments are greatly appreciated. Please feel free to email me at northyubanaturalist@gmail.com. Thanks!

Sunday, March 20, 2022

A Walk in the Rain!


It's raining right now, and on last Tuesday it rained a total of .66"!  Yahoo!  On Tuesday, like today, it was raining lightly so I went out wandering to see what I could see.  I decided to head over to a seasonal creek that had been bone dry last week.  To my joy, the water in the creek was running and the bedrock pools were filled with rainwater!  I kept hiking upstream from one pool to another, delighting in the small waterfalls that flowed between them!  

Western Polypody & Dendroalsia Moss
Polypodium hesperium - Dendroalsia albietina

The moss and ferns that grew along the bank of the creek 
were lush and full from the rain.  The moss formed thick, soft, damp cushions on the rocks.  The ferns dripped and danced in the rain!  Such beauty!
 
Water Strider - Gerris sp.

Since the pools had been covered with dried algae for the past two months, there weren't any frogs in them. Surprisingly, however, there were Water Striders!  These insects spend the winter as adults, under leaf litter and rocks on the forest floor.  Now that the water is present and temperatures have warmed up, they're back preying on insects and spiders on the surface of the ponds. Water Striders have several thousand hydrofuge (water resistant) hairs per square mm, on their body and legs.  These hairs allow them to "walk on water"!

Northern Flicker (female) - Hermit Thrush (adult)
 Colaptes auratus - Catharus guttatus

I kept hearing a Northern Flicker calling and calling, and finally saw a female perched nearby.  These beautiful birds are in the Woodpecker family.  They don't peck on tree trunks in search of insects like other Woodpeckers, although they will hammer out nesting holes in trunks.  No. Flickers mainly eat carpenter ants and other insects in downed rotten logs, and on the ground.  Some years, depending on the severity of winter, they live year-round in our neighborhood.

I also saw a lovely Hermit Thrush in the creek bed canyon!  It's the first one I've seen locally this year.  Maybe it just flew up from the foothills, on its migration north to Canada or Alaska.  I love their speckled breasts!

Brewer's Rock Cress - Seep-spring Monkeyflower (?)
Boechera breweri - Erythranthea sp.

On the way up the creek bed, I came across a few early wildflowers in bloom growing on the mossy banks!  Both of the flowers pictured above were quite tiny, about 1/2" in length!
 
Shelton's Violet/Fan Violet - Milk Maids/Toothwort
Viola sheltonii - Cardamine californica

After a while I hiked back down to the mouth of the creek bed, to see what else might be in bloom.  In the shady forest, Violets and Milkmaids were the only wildflowers I came across. I wonder what part of their genetic makeup causes them to bloom ahead of most other wildflowers. 
  
Male and female Willow Catkins - Salix sp.

Several shrubs are also in bloom. The willows continue to be gorgeous... 

Male Alder catkins - Alnus sp.

...as well as the alders, with their long, pendulant, male catkins.

Greenleaf Manzanita - Plum (species unknown)
Arctostaphylos patula - Prunus sp.

 The Manzanita bushes have recently blossomed, whereas the plums have been in bloom for a week or more.  The plum pictured above right produces many delicious, oval, reddish-purple fruits that I really enjoy eating at the end of summer.  I suspect that it's not a native plum, since it's growing between two houses, and there aren't any more to be found locally.  

Sierra Gooseberry - Oregon Grape
Ribes roezlii - Berberis aquifolium

The Sierra Gooseberry is wind pollinated, so it blooms early, usually when there aren't many insects around!  I don't know if that's the case for the Oregon Grape pictured above.  I need to spend time watching both of these plants to see if insects frequent them.  

After several hours of wandering, the rain got a little heavier, so I headed home, with my camera under my jacket, replenished by the lovely, longed-for rain!  Ahhh!

Wood Duck Pond - 3/14/22

Wood Duck Pond!

I finally made it to Wood Duck Pond this week!  Yay!  It's down in the foothills, and not in my usual path of travel.  It was just as lovely and full of life as ever!

Wood Duck & Ring-necked Duck (both males)
Aix Sponsa - Athya collaris

Right away I spotted some Wood Ducks, a pair of Ring-necked Ducks, and one Pied-billed Grebe!  How exciting!  The males are so colorful, and the females are so camouflaged!

Ring-necked Duck pair - Athya collaris

When I was going over my photos of these Ring-necked Ducks, I kept thinking how pretty and how feminine the female looked!  I've never thought this about any wild duck before, but she definitely looked like his prize possession! 

Ring-necked Duck pair - Athya collaris

I saw some Ring-necked Ducks on this pond last year. They are uncommon in our area, and won't nest here. They are just stopping by on their migration north. The following information about these ducks is from the Cornell website, birdsoftheworld.org.

"Migratory throughout its range, this duck nests at generally low densities in subarctic deltas, taiga, boreal forest, aspen parkland, and to a lesser extent, prairie regions. Migrates nocturnally in small flocks of 10–75 birds. Celestial, landscape, and geomagnetic cues are used in varying degrees for navigation by waterfowl as a group. No information specific to the Ring-necked Duck.

Pair bonds that form during spring migration (Mar–Apr) remain intact until early incubation (Jun–early Jul). Primarily monogamous. They feed on moist-soil and aquatic plant seeds and tubers, as well as aquatic invertebrates. Feeds exclusively in water, usually within flooded emergent vegetation, along open-water edges of emergent vegetation, and in open-water areas vegetated with flooded moist-soil or floating or submerged aquatic plants."

Wood Duck pair - Aix sponsa

Wood ducks nest in the foothills of the western Sierra, usually below 3,000' - 4,000' in elevation. They are tree-cavity nesters, but do not use abandoned woodpecker cavities. They use natural cavities that have formed in a mature tree, often where a branch has broken off due to heart rot. The Wood Duck is the only North American duck that regularly produces two broods in one 5-6 month breeding season! The female lays 10-13 eggs in her feather-lined nest, anytime between March and June. The incubation period is 30 days. The ducklings are born precocial, and leave the nest usually within 24 hours after hatching. They jump to the ground and their mother leads them to water, where they immediately start feeding! After approximately 30 days, the female abandons the young ducklings, to start another brood! This pond is in the right elevation/location for these ducks to nest.

Pied-billed Grebe (adult) - Podilymbus podiceps

Pied-billed Grebe are uncommon. "Pied" means having two or more colors. They eat crustaceans, fish, frogs, and aquatic insects. They forage for food underwater, as well as on the surface of ponds and bays. Curiously they also eat a lot of their feathers! Apparently this helps in the formation of pellets that they cast to rid their intestine of undigested material. The Cornell Lab states: "Regular ejection of stomach contents minimizes buildup of gastric parasite population in upper alimentary tract." To escape predation they dive or sink slowly out of view, or hide underwater with only their eyes and nostrils just above the surface! Together the male and female build their floating platform of a nest out of dead and rotting aquatic plants. Additionally, they share the brooding of eggs and raising of the young. They are fierce defenders of their nesting territory, often attacking other waterfowl from underwater! What interesting, different habits this bird has! I'm always so amazed at how everything has evolved so specifically!

I took the photo on the right while the grebe was "sinking"!  It was so cool to have read about them doing this, and then to see it happen!  It sunk pretty slowly, like a submarine!  Wow!!!  I spent a good hour watching these beautiful birds!  What a treat!

Northern Flicker in the Rain!
 Colaptes auratus 

Damp Earth Art

We got an inch of rain this week!  Not a lot but better than nothing. More rain is tentatively predicted for next weekend and the week after! Anything helps! Please join me in my continuing hope for precipitation! Perhaps our collective efforts may help it happen. Rumor has it that there was an outdoor "Rain Dance" performed in our area this week, just before the storm came! My thanks go out to those who were involved, I'm sure it helped! Yay! I'm going to keep posting rain inspired writings, art, etc. on my blog at dampearthart.blogspot.com. Any submissions would be greatly appreciated.


Wishing for peace in Ukraine and an immediate end to this senseless war!

What's happening on the River?

What's going on in the Lakes Basin?

What's happening at Table Mountain?

Unfortunately, you can no longer sign up to get my blog via email. Just go to northyubanaturalist.blogspot.com directly. It looks better than the emailed version!

Your questions and comments are greatly appreciated. Please feel free to email me at northyubanaturalist@gmail.com. Thanks!