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Zoom Recording: Singing Feathers, Humming of Hummingbirds and the Quiet Flight of Owls and other Birds, with Dr. Christopher Clark.

February 7, 2024

The recording of this program from 6 Feb 2024 is now available online

Great Gray Owl (photo courtesy of Christopher Clark)

Singing feathers, hummingbirds & quiet-flying Owls, with Dr. Christopher Clark – CLICK HERE

Recording Glitch: There are two programs recorded here. The first (18 seconds long) is useless; click the forward button >| at lower left of screen to go past it. When the second recording appear, click the usual run button at lower left. Dr. Clark begins speaking about 20 seconds in.

Singing Feathers, Humming of Hummingbirds and the Quiet Flight of Owls and other Birds with Dr. Christopher J. Clark

Dr. Christopher J. Clark, Professor of Biology at UCR uses wind tunnels, high-speed video and other technology to study bioacoustics and biomechanics of flight and courtship.  In what was originally a side project of his Ph.D., he figured out that Anna’s Hummingbirds produce loud sounds with their tail-feathers. This result was so interesting that sounds produced in flight became a major part of his research program. He will spend the first part of his presentation discussing how hummingbirds make both vocal and nonvocal sounds.  Then he will pivot to discussing a more recent interest: quiet flight. Owls such as Great Gray Owl perform an especially amazing feat: they take prey such as voles that they locate by ear alone. Dr. Clark will discuss ongoing research on quiet flight, as well as unanswered questions such as: why do nightbirds (such as Common Poorwill) also have quiet flight?

Dr. Clark grew up in Seattle, received his undergraduate degree in Zoology from Washington State University in 2001, his Ph.D. from the Museum of Vertebrate Zoology at UC Berkeley in 2009, then worked in the Peabody Museum at Yale University until 2013, and has been a professor in the Evolution, Ecology, and Organismal Biology department at UC Riverside from 2013-present.

Great Gray Owl locating prey under the snow. (photo courtesy of Christopher Clark)

Golden-crowned Kinglet

February 7, 2024

[By Chuck Almdale, photos by Chuck Gates]

There are only six species in the small passerine family (of small passerines) of Regulidae (Birds of the World Family Link). Five species, including the Golden-crowned Kinglet, are in genus Regulus; Ruby-crowned is in genus Corthylio. The genus and family name “Regulus” is Latin for “little king.” The species name “satrapa” is from Greek “satrapes” for “a ruler” [yes, it’s a bit redundant]. All six species are quite small (3.75-4.5″) and all have a brightly colored crown, often concealed, which led to the allusion to “king.” The information below is adapted from Birds of the World.

We do get a few Golden-crowned Kinglets in SoCal, particularly in the higher mountain conifers, but they are vastly outnumbered by the Ruby-crowned, a species remarkable for having the largest clutch – up to 12 eggs – for its size of any North American passerine.

Photographer Chuck Gates lives in the Prineville region of Eastern Oregon, 25 miles northeast of Bend in the high desert, and has birded the area for decades. A few years ago he formed Prineville Bird Club which attracted the area’s avid birders. The four photos below – sent to me by a relative and which I thought especially nice – came from a recent trip he led over to the Pacific Coast of Southern Oregon. I’ve never seen the crest so brightly displayed. He is happy to share them with us.

Golden-crowned Kinglet Regulus satrapa: 3.25-4.25″ Photo link
Subspecies: 6 
Range: So. Alaska to Newfoundland to No. Florida to No. Mexico.

Golden-crowned Kinglet (Chuck Gates 1/28/24, Oregon)

Breeding: Breeds primarily north of Canadian border and the high mountain ranges extending south into the U.S., migrates for winter as far south as northeastern Mexico. Nest building begins as early as early May. Nest site probably chosen by the female, often high up in dense foliage. Nests average 3″ in diameter and may be suspended from stems, in twigs in the fork of a conifer tree or under foliage near end of a branch, height is 2-18 m, averaging 15 m. Overhanging foliage protects it from the elements and hides it from view from the side or above, but it can sometimes be partially seen from below. Clutches can be large (5-11 eggs) and most pairs lay two clutches per year. Eggs are 0.4″ x 0.5″. Eggs hatch on the same day, usually day 14-15, and the young fledge from the nest 18-19 days later.

Golden-crowned Kinglet (Chuck Gates 1/28/24, Oregon)
Did you notice the feet?

Habitat: Breeds in boreal & spruce-fir forest, pines, aspens; prefers old-growth & mature forest between 250-3500m depending on region.

Golden-crowned Kinglet (Chuck Gates 1/28/24, Oregon)

Diet: Arthropods, some vegetation & fruit; forages on branches, leaves, bark, mosses, lichens, also on ground. Frequently hovers and gleans in canopy from 2–10 m height.

Golden-crowned Kinglet (Chuck Gates 1/28/24, Oregon)

In the not-too-distant future we’ll take a look at this small and interesting family in an installment of our Family Focus series, yet to be written.

Singing Feathers, Humming of Hummingbirds and the Quiet Flight of Owls and other Birds with Dr. Christopher J. Clark. Zoom Evening Meeting reminder, Tuesday, 6 February, 7:30 p.m.

February 5, 2024

You are all invited to the next ZOOM meeting
of Santa Monica Bay Audubon Society

Great Gray Owl (photo courtesy of Christopher Clark)

On Feb. 6, 2024 at 7:15-7:30 pm, join the Zoom presentation by CLICKING HERE

Singing Feathers, Humming of Hummingbirds and the Quiet Flight of Owls and other Birds with Dr. Christopher J. Clark
Zoom Evening Meeting, Tuesday, 6 February, 7:30 p.m.
Zoom waiting room opens 7:15 p.m.

Dr. Christopher J. Clark, Professor of Biology at UCR uses wind tunnels, high-speed video and other technology to study bioacoustics and biomechanics of flight and courtship.  In what was originally a side project of his Ph.D., he figured out that Anna’s Hummingbirds produce loud sounds with their tail-feathers. This result was so interesting that sounds produced in flight became a major part of his research program. He will spend the first part of his presentation discussing how hummingbirds make both vocal and nonvocal sounds.  Then he will pivot to discussing a more recent interest: quiet flight. Owls such as Great Gray Owl perform an especially amazing feat: they take prey such as voles that they locate by ear alone. Dr. Clark will discuss ongoing research on quiet flight, as well as unanswered questions such as: why do nightbirds (such as Common Poorwill) also have quiet flight?

Dr. Clark grew up in Seattle, received his undergraduate degree in Zoology from Washington State University in 2001, his Ph.D. from the Museum of Vertebrate Zoology at UC Berkeley in 2009, then worked in the Peabody Museum at Yale University until 2013, and has been a professor in the Evolution, Ecology, and Organismal Biology department at UC Riverside from 2013-present.

Great Gray Owl locating prey under the snow. (photo courtesy of Christopher Clark)

On Feb. 6, 2024 at 7:15-7:30 pm, join the Zoom presentation by CLICKING HERE

(If this button isn’t working for you, see detailed zoom invitation below.)


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Breakfast at Ospreys’: Malibu Lagoon, 28 Jan. 2024

January 31, 2024

[Text by Chuck Almdale; photos by Ray Juncosa & Chris Tosdevin]

Willet (L 15″) and Marbled Godwit (R 18″) (Chris Tosdevin 1-24-28)
Bill length accounts for most of the size difference, and they don’t seem to be serious competitors for food.

The day started warm – 70°F at 8am – and got warmer. Of course – it’s January! Winter was over weeks ago! [Completely untrue.] The day started and stayed breezy, with gusts up to 17mph according to NOAA.

The best sighting of the day was our wintering Osprey. It had been absent in the early morning, but as we were making our way beachward from the meeting area, it flew by, scanning the channels for a breakfast fish.

Osprey 1 (Chris Tosdevin 1-28-24)

It spotted one and plunged, but came up empty-taloned. It rose, flew around so more, then dove again. This time it didn’t immediately leap up out of the water. [Captioned comments below are by photographer Ray Juncosa.]

Osprey 2. “In the soup, dragged down by what turned out to be a fish as big as the bird’s body.” (Ray Juncosa 1-28-24)

In fact, it seemed to be having a tough time just keeping its head above water.

Osprey 3. “Trying mightily to get airborne.” (Ray Juncosa 1-28-24)

Finally it was able to rise out of the water, hoisting a large mullet. They can lift up to 90% of their own weight. An adult Osprey weighs about 3 lbs., and I suspect this fish weighed pretty close to that. The bird looks much larger, of course, with that wingspan of 58-72,” but it’s built mostly of air. That fish is solid meat.

Osprey 4. “Finally clear of the water. Maybe even needing the tail outspread for lift…as airliners do to put down their flaps for landing.” (Ray Juncosa 1-28-24)

The Osprey is taking very deep wing strokes. It continues working hard to gain altitude.

Osprey 5 (Chris Tosdevin 1-28-24)

The Great Blue Heron below made an attempt to scare the Osprey off its fish and gain a free meal for itself. It failed as the Osprey headed for the beach and the sea beyond to gain some more altitude away from the thieves in the lagoon.

Osprey & Great Blue Heron 6 (Chris Tosdevin 1-28-24)

Off it goes. We weren’t sure where it was heading, but I suggested that it would circle back and head for the cypress trees or its favorite electric pole at the corner of Malibu Colony where the Mockingbird used to sit and sing.

Osprey 7 (Ray Juncosa 1-28-24)

Soon it returned from seaward and landed on the pole. It seemed like 20 minutes passed before the doomed fish ran out of energy, ceased struggling, and died.

Osprey 8 “Whoa! The fish was still alive!” (Ray Juncosa 1-28-24)

The mullet finally became still. Meanwhile the Osprey stayed on the alert for interlopers. It had been spotted by crows.

Osprey 9 “Scanning and on alert for the four crows wanting to set up their harassment scheme.  After about five or ten minutes the crows abandoned the scene, probably knowing they could get enough scraps later.” (Ray Juncosa 1-28-24)
Osprey 10 “Finally subdued.” (Ray Juncosa 1-28-24)

When one foot is hanging onto your fish, and the wind is gusting, and thieves are lurking, it can be hard to manipulate your meal into eating position and maintain your balance on the other. This next photo gives you the best comparison of bird to fish body size.

Osprey 11 “A leg to stand on and a giant mullet on the other.” (Ray Juncosa 1-28-24)

It now seems safe to eat breakfast. Head first, of course.

Osprey 12 (Ray Juncosa 1-28-24)

Very little is wasted. Note the talons. They’re why a fish, once caught, rarely escapes.

Osprey 13 (Ray Juncosa 1-28-24)

The discards consist of the gills and those stiff fins and tail.

Osprey 14. “We think that the gills were stiff and inedible and, therefore, specifically picked out to drop to the ground.” (Ray Juncosa 1-28-24)

On our way back from the beach, we ran into our “Parents & Kids Trip” leaders with a group of 19 girl scouts and parents, all watching the Osprey working its way through the fish. Including those 19, we had a total of 48 birders, probably a record.

We had a total of 57 species of birds, which is a hair over our average of 55.6 for 26 years worth of January censuses. Here are some of the more interesting sightings.

Three males, front to back: Northern Shoveler, Green-winged Teal, Gadwall (Chris Tosdevin 1-28-24)

Their bodies and bills appear differently-sized, bu they’re both Least Sandpipers.

Least Sandpipers (Chris Tosdevin 1-28-24)

Royal Terns, three views. The black eye stands out from the black fringe behind it. Bill is thicker and less curved than that of the confusingly similar Elegant Tern, and has a slight gonydeal “bump” on the lower mandible, absent on the Elegant.

Royal Terns (Chris Tosdevin 1-28-24)

This Heermann’s Gull with it’s unblemished white head and black-tipped red bill is about ready to fly south to breed in the Sea of Cortez.

Heermann’s Gull adult (Chris Tosdevin 1-28-24)

You rarely get this close a look at the Ring-billed to easily see the pale eye and the vertical black ring.

Ring-billed Gull adult in winter (Chris Tosdevin 1-28-24)

The Herring Gull also has a light eye and pale gray back, but has pink legs, black primaries with white “windows,” a thick yellow bill, streaking on the head, neck and (often) upper breast, and is the same size as the Western Gull. The somewhat similar California Gull is 4″ shorter, has a dark eye, a red and black gonydeal spot and when adult has greenish yellow legs.

Herring Gull with four (maybe more, count ’em again) Ruddy Turnstones (Chris Tosdevin 1-28-24)

Most of the Glaucous-winged Gulls we get in SoCal are first-winter or second-winter (like the bird below) birds. “Glaucous” means “waxy” and – in my opinion – refers to the overall oddly gray plumage of the first winter birds. It really does look like its been rubbed all over with pale candle wax. Their legs are always pink and they never have black in their primaries. The one below has worn secondary feathers, giving it a bit of a “shredded” look.

Glaucous-winged Gull (Chris Tosdevin 1-28-24)

Last but not least, one of our most common winter passerines, a Yellow-rumped (Audubon’s) Warbler, which strikes me as exceptionally brightly plumaged for the middle of winter. The yellow plumage is well in, but the black breast has a way to go.

Yellow-rumped Warbler (Chris Tosdevin 1-28-24)

Malibu Lagoon on eBird as of 2-01-24: 7447 lists, 319 species
Most recent species added: Red-breasted Nuthatch (31 October 2023, Kyle Te Poel).

Many, many thanks to photographers: Ray Juncosa, Chris Tosdevin

Upcoming SMBAS scheduled field trips; no reservations or covid card necessary unless specifically mentioned:

  • Madrona Marsh Sat Feb 10, 8:30 am.
  • Malibu Lagoon, Sun. Feb 25, 8:30 (adults) & 10 am (parents & kids)
  • Sepulveda Basin Sat. Mar 9, 8:00 am
  • These and any other trips we announce for the foreseeable future will depend upon expected status of the Covid/flu/etc. pandemic at trip time. Any trip announced may be canceled shortly before trip date if it seems necessary. By now any other comments should be superfluous.
  • Link to Programs & Field Trip schedule.

The next SMBAS Zoom program: “Aeroacoustics Lab at UCR” with Dr. Chris J. Clark, Evening Meeting, Tuesday, Feb 6, 2023, 7:30 p.m.

The SMBAS 10 a.m. Parent’s & Kids Birdwalk restarted almost a year ago on April 23. Reservations for groups (scouts, etc.) necessary, call Jean (213-522-0062); not necessary for families.

Links: Unusual birds at Malibu Lagoon
9/23/02 Aerial photo of Malibu Lagoon
More recent aerial photo

Prior checklists:
2023: Jan-June, July-Dec
2021: Jan-JulyJuly-Dec2022: Jan-June, July-Dec
2020: Jan-JulyJuly-Dec  2019: Jan-June, July-Dec  
2018: Jan-June, July-Dec  2017: Jan-June, July-Dec
2016: Jan-June, July-Dec  2015: Jan-May, July-Dec
2014: Jan-July,  July-Dec  2013: Jan-June, July-Dec
2012: Jan-June, July-Dec 2011: Jan-June, July-Dec
2010: Jan-June, July-Dec  2009: Jan-June, July-Dec

The 10-year comparison summaries created during the Lagoon Reconfiguration Project period, remain available—despite numerous complaints—on our Lagoon Project Bird Census Page. Very briefly summarized, the results unexpectedly indicate that avian species diversification and numbers improved slightly during the restoration period June’12-June’14.

Many thanks to Femi Faminu, Chris Lord, Marie Nosurname, Chris Tosdevin and others for their contributions to this month’s checklist.

The species lists below is irregularly re-sequenced to agree with the California Bird Records Committee Official California Checklist. If part of the chart’s right side is hidden, there’s a slider button inconveniently located at the bottom of the list. The numbers 1-9 left of the species names are keyed to the nine categories of birds at the bottom.
[Chuck Almdale]

Malibu Census 2023-248/279/2410/2211/2612/241/28
Temperature69-7356-7462-7062-6853-6453-64
Tide Lo/Hi HeightH+3.68H+3.77L+3.34H+6.53H+6.20H+5.06
 Tide Time083207391029074006441008
1Canada Goose    218
1Cinnamon Teal   313
1Northern Shoveler  1 1310
1Gadwall454023302754
1American Wigeon   514 
1Mallard2012 987
1Green-winged Teal 1 31817
1Lesser Scaup   1  
1Surf Scoter  15834
1Bufflehead   51812
1Red-breasted Merganser   2054
1Ruddy Duck  12223730
2Pied-billed Grebe214622
2Horned Grebe    1 
2Eared Grebe    11
2Western Grebe  28131814
7Feral Pigeon343444
7Mourning Dove251   
8Anna’s Hummingbird 22 2 
8Allen’s Hummingbird 14135
2Sora 1    
2American Coot649157230280148
5Black Oystercatcher    1 
5Black-bellied Plover39827975245
5Killdeer136152018
5Semipalmated Plover73    
5Snowy Plover1322181  
5Whimbrel383223484
5Long-billed Curlew43    
5Marbled Godwit148455115
5Short-billed Dowitcher12    
5Red-necked Phalarope2     
5Spotted Sandpiper33    
5Willet9295612223
5Ruddy Turnstone24101105
5Sanderling2322769107
5Least Sandpiper8186352816
5Western Sandpiper315    
6Bonaparte’s Gull    3 
6Heermann’s Gull905155712212
6Ring-billed Gull  4423425
6Western Gull856545686430
6Herring Gull1  112
7Lesser Black-backed Gull    1 
6California Gull377220425270
6Glaucous-winged Gull   153
6Caspian Tern1     
6Forster’s Tern 1    
6Elegant Tern402421  
6Royal Tern10451273
2Pacific Loon   1 1
2Common Loon  1   
2Black-vented Shearwater 2028   
2Brandt’s Cormorant   1  
2Pelagic Cormorant 12 51
2Double-crested Cormorant233048374718
2Brown Pelican562712267226
3Black-crowned Night-Heron52  11
3Snowy Egret85220187
3Green Heron131   
3Great Egret5 642 
3Great Blue Heron532421
4Turkey Vulture  122 
4Osprey111211
4Red-shouldered Hawk 1  1 
4Red-tailed Hawk112  1
8Belted Kingfisher 21 11
8Downy Woodpecker    1 
8Nuttall’s Woodpecker 1  1 
8Hairy Woodpecker    1 
8Northern Flicker (Red-shafted)  1   
4American Kestrel 1    
4Peregrine Falcon   1  
8Nanday Parakeet  2   
9Black Phoebe244241
9Say’s Phoebe   1  
9California Scrub-Jay 2  12
9American Crow96443510
9Common Raven12  1 
9Oak Titmouse 31 1 
9Northern Rough-winged Swallow 2    
9Barn Swallow354    
9Bushtit 82250 12
9Wrentit141431
9Ruby-crowned Kinglet   1  
9Blue-gray Gnatcatcher   2  
9House Wren 2232 
9Marsh Wren   1  
9Bewick’s Wren 1 1  
9European Starling 151222282
9Hermit Thrush     1
9House Finch5656912
9Lesser Goldfinch   2 6
9Dark-eyed Junco    2 
9White-crowned Sparrow  10202715
9Savannah Sparrow 1    
9Song Sparrow4556710
9California Towhee 31211
9Red-winged Blackbird 715 162
9Great-tailed Grackle1120 1 
9Orange-crowned Warbler 12  2
9Common Yellowthroat 24855
9Yellow Warbler1     
9Yellow-rumped Warbler (Audubon’s)  51266
9Townsend’s Warbler  1   
9Wilson’s Warbler 1    
9Western Tanager 1    
9Black-headed Grosbeak 1    
Totals by TypeAugSepOctNovDecJan
1Waterfowl655351134155149
2Water Birds – Other87129280314426211
3Herons, Egrets & Ibis24131128239
4Quail & Raptors244542
5Shorebirds145299265139162103
6Gulls & Terns230152118416562345
7Doves594444
8Other Non-Passerines0610196
9Passerines598215414611988
 Totals Birds61774789711871464917
        
 Total SpeciesAugSepOctNovDecJan
1Waterfowl234101110
2Water Birds – Other478788
3Herons, Egrets & Ibis544343
4Quail & Raptors243332
5Shorebirds15149998
6Gulls & Terns766897
7Doves222111
8Other Non-Passerines045162
9Passerines92317181716
Totals Species – 108466758606857

Ancient Murrelet at Dana Point, CA | Video

January 30, 2024

[Posted by Chuck Almdale]

This video showed up today on OrangeCountyBirding@groups.io chatline. It’s actually two short videos back-to-back of the Ancient Murrelet that’s been hanging around offshore. These very cute 10″ football-shaped birds, a member of the Alcidae (auks**, murres & puffins) family, nest in Alaska, particular in the Aleutian archipelago, plus the shores of southern and peninsular Alaska. They’re rare winterers south of San Luis Obispo County and mostly well off-shore, so spotting one near-shore in Orange County is a pretty big deal (in the rarefied atmosphere of the birding community). In the winter they eat mostly crustaceans and (probably) small fish.

Dr. Joel Weintraub, who posted this video, also has a bunch of videos pertaining to birding, binoculars, telescopes, plus censusing and Ellis Island. If you feel you knowledge of these areas needs brushing up, check them out at: https://www.youtube.com/@JDWTalks

Wikipedia has a reasonably good write-up on Ancient Murrelets, which are “ancient” because of the gray shawl-like coloring of their back (think: Whistler’s mother) and the white streaks (mostly in breeding) on their head and nape.

**Auk: The word “auk” /ɔːk/ is derived from Icelandic álka and Norwegian alka or alke from Old Norse ālka from Proto-Germanic *. I can’t find any sources that say (or admit) that the word was originally onomatopoetic for its vocalizations.