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Returnees: Malibu Lagoon, 27 August 2023

September 7, 2023

[By Chuck Almdale]

Stand up and be counted! Please! Ruddy Turnstone (Larry Loeher 8/31/23)

Turnstones rarely stand up straight, but hunch over, looking down for tiny things to eat. They’re at the upper end of peep-sized.

Last month we had 70 shorebirds in 9 species; this month we had 145 shorebirds in 15 species. And that’s about right for the July to August transition. Birds are returning. Some stay all winter, or at least the species is present if not the individuals. Some, Semipalmated Plovers for example, continue south, then return briefly in the Spring on their way north. Some, like the Brown Pelican (not an actual “shorebird” although technically it is a bird on the shore) below, continually drop in all year around.

Brown Pelican levitates o’er the lagoon (Ray Juncosa 8/27/23)

I think we arrived at almost 30 birders (whom I rarely enumerate) who drifted in and out. Many arrive late — suddenly I find myself surrounded by people appearing out of nowhere — but by the time we hit the beach they’ve wandered off in different directions. The weather was nice, starting at 69°F and not getting much warmer.

The Osprey was on its Official Osprey Pole, installed a decade ago as a perch intended specifically for him. But he and/or she prefers the various cypress trees or the telephone pole by Malibu Colony, or the monkey-puzzle tree by Adamson House. He got up later and flew around a bit, even swooped low a couple of times, but didn’t actually dive on anything. He did give some of the peeps, gulls, and terns a fright. Notice the amber eye.

Osprey (Chris Tosdevin 8/27/23)

Black-crowned Night-Herons tend to feed by themselves, as someone else nearby might scare the fish or try to steal one you just caught. But these two juveniles stayed pretty close to each other. Perhaps they were recent nestmates, and weren’t used to being by themselves quite yet. Two young herons face the world!

Black-crowned Night-Heron juveniles (Ray Juncosa 8/27/23)

Let’s take a look at some of the shorebirds, especially the “peeps.” Do you know, by the way, why they’re called “peeps?”

A baffling of birders on the west end path looking at peeps and egrets (Ray Juncosa 8/27/23)

Birders tend to confuse the smallest peeps with each other — the Least and the Western for example. As befits the name, the Least is the smallest peep, 1/4-1/2″ smaller than the Western. This time of year they can appear in juvenile, breeding (alternate), or winter (basic) plumages. The Least (below) tends to be a bit “warmer” brown , more streaky breast with a shorter slightly decurved bill and yellow-green legs. Westerns never have yellow-green legs, so thats a good “quickie” field mark, but which needs to be confirmed with the other marks. But sometimes the Least’s legs can look black from mud or shadow. Check the legs on this bird below. Black. But it looks like a Least, with warm brown colors, especially on the breast. Check that one toe in the sunlight. Yellow-green. Ah hah!

Least Sandpiper (Chris Tosdevin 8/27/23)

Below is a real Western Sandpiper. Not as warm brown, more gray-black-white, save for that rusty-brown streak on the shoulder, a left-over from breeding. Black legs and longer, more curved black bill. Check the bill closely. Tiny points like teeth on the bill edges. You rarely get a good enough look to see those.

Western Sandpiper (Chris Tosdevin 8/27/23)

Sanderlings look a lot like both Western Sandpipers and Snowy Plovers, but not at the same time. It depends on the time of year. They’re generally even more gray-black-white than the Westerns, except in breeding when they can have a lot of warm rusty-red colors, but we rarely see that in SoCal. They frequently roost among the Snowy Plovers on Malibu Beach, so we have to be careful of them when we’re censusing the SNPLs and all we can see is the tops of their heads. They’re about 1.5″ larger than the Westerns, a significant difference except when they’re crouched down in a tiny dimple in the sand. Their legs and bill are black and the bill is thicker and shorter, often with a tiny bulge at the tip. They are often seen running back and forth on the sand as the wavelets wash in and out, and when most people think of “sandpiper,” they’re thinking of this bird. They are our chapter “mascot.”

Sanderling (Chris Tosdevin 8/27/23)

The three phalarope species look like peeps, but they are really their own group. 92% of our phalarope visits at the lagoon are by Red-throated, like the bird below, which has the intermediate-length bill of the three. They’re all about the same size or slightly larger than Sanderlings, but they look less bulky and behave differently. Sanderlings poke at the sand; phalaropes normally feed in fairly shallow calm water, spinning in a circle to make an tiny upwelling vortex which brings invertebrates to the surface where they pick them up. Phalaropes are also polyandrous: the females are more colorful than the males and they take multiple mates while the males tend to the nest and the young.

Red-throated Phalarope (Chris Tosdevin 8/27/23)

Snowy Plovers are semi-polyandrous. All our readers should be familiar with them as our chapter has “adopted” them and censused them on several L.A. County beaches over the past three decades. The males are ever-so-slightly more colorful than the females, and both male and female build the nest (such as it is, which isn’t much) and sit on the eggs. But within a few days of the eggs hatching, the female leaves and flies elsewhere to find a new mate and nest again. She may do this several times each breeding season. The male, meanwhile, stays with the young and watches over them. But he doesn’t bring them any food. They have to find their own, while he stands around and watches. Occasionally, when he feels that a potential predator (gull, larger shorebird) is nearby, he’ll try to chase it off. And he may rest near the young. But that’s about the extent of his parental care.

Snowy Plover Lw: kr (Larry Loeher 8/31/23)
The code stands for Left Side, Lime (above the ankle or “backwards knee”) over White: Right side, Black over Red.

Snowy Plover bb: gv (Chris Tosdevin 8/27/23)
The code stands for Left Side, Blue over Blue: Right side, Green over Violet.

Our final sandpiper is not a “peep.” Fully grown they can be 23″ long. Their bills can vary in length as it takes a few months for their bill length to catch up to their body size. Long-billed Curlews look a lot like Whimbrels as their long bills curve downward. Whimbrels are about 50 times more common at the lagoon than the Long-billed, max out at 17.5″ long, have dark stripes on their head including one through the eye, and are less warmly brown all over. Curlews briefly stop at the lagoon to rest but don’t really like the limited habitat, and leave before long. A few dozen generally spend the winter at Upper Newport Bay which has more extensive marshland and grassy fields.

Long-billed Curlews (Chris Tosdevin 8/27/23)

I don’t know how Chris Tosdevin finds these butterflies, which at 1/2-3/4″ inch, wing-tip to wing-tip, are the world’s smallest butterfly. [The largest moth is the Atlas Moth of SE Asia, with a 10″ wingspan.] Their range is fairly extensive and includes the lagoon. I put one of his older Pygmy Blue photos into this month’s trip announcement; perhaps he saw it and felt it needed a companion.

Western Pygmy Blue Butterfly, Brephidium exilis (Chris Tosdevin 8/27/23)

Range of the Western Pygmy Blue Butterfly, Brephidium exilis. Source: Butterflies & Moths

Occasionally the locals get rowdy, usually some sort of turf (or aerial equivalent) battle.

Northern Raven and juvenile Red-tailed Hawk (Chris Tosdevin 8/27/23)

You’ll be happy to know that The Arc of the Cormorant, Part II is still playing at the lagoon.

The Arc of the Cormorant [Double-crested] (Ray Juncosa 8/27/23)

One can only guess what this Heermann’s Gull is up to with this stick. The Western Gull seems bemused as well.

Western & Heermann’s Gulls (Grace Murayama 8/31/23)

Finally, we have a Snowy Egret stirring up the waters, trying to arouse some curiosity among the fish.

Snowy Egret (Larry Loeher 8/31/23)

Not much to report on the ducks and geese, alas. Not all the Mallards and Gadwall are full-sized yet, and after seven months our small family of four Canada Geese have left.

Birds new for the Season: Pied-billed Grebe, Feral Pigeon, Long-billed Curlew, Marbled Godwit, Ruddy Turnstone, Sanderling, Short-billed Dowitcher, Spotted Sandpiper, Red-necked Phalarope, Herring Gull, Caspian Tern, Green Heron, Osprey, Red-tailed Hawk, Wrentit, Yellow Warbler.

Malibu Lagoon on eBird as of 8-29-23: 7066 lists, 319 species
Most recent species added: Lilac-crowned Parrot (13 May 2023, Nick Diaco).

Many, many thanks to photographers: Ray Juncosa, Larry Loeher, Grace Murayama, Chris Tosdevin

Upcoming SMBAS scheduled field trips:

  • Malibu Lagoon, Sun. Aug 24, 8:30 am. No reservations or Covid card required.
  • Coastal Cleanup Day, Various Locations, Sat. Sep 23, 9 am–Noon
  • Field trip to be announced: Sat. Oct 14.
  • Malibu Lagoon, Sun. Oct 22, 8:30 am. No reservations or Covid card required.
  • 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: “Birds of Cuba” with Alvaro Jaramillo. Tuesday, 3 Oct. 2023, 7:30 p.m.

The SMBAS 10 a.m. Parent’s & Kids Birdwalk restarted April 23. Reservations for groups (scouts, etc.) necessary; 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
2021: Jan-JulyJuly-Dec 2022: 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 Ray Juncosa, Chris Lord, Chris Tosdevin, Ruth 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 as updated Aug 2023. If part of the chart’s right side is hidden, there’s a slider button at the bottom of the list.
[Chuck Almdale]

Malibu Census 20233/264/235/286/257/238/27
Temperature57-6057-6661-6259-7166-7069-73
Tide Lo/Hi HeightL+0.28L-.041L+0.81L+0.89L+0.81H+3.68
 Tide Time080006371131091907300832
1Canada Goose64544 
1Gadwall422417459045
1Mallard121512337720
1Green-winged Teal5     
1Redhead3     
1Surf Scoter2232   
1Red-breasted Merganser2     
2Pied-billed Grebe12   2
2Western Grebe806    
7Feral Pigeon618  3
7Eurasian Collared-Dove  2   
7Mourning Dove122222
8White-throated Swift5     
8Anna’s Hummingbird 1 11 
8Allen’s Hummingbird32124 
2American Coot376 5 6
5Black-bellied Plover3   639
5Killdeer5448813
5Semipalmated Plover 14  17
5Snowy Plover 1  713
5Whimbrel2516 113238
5Long-billed Curlew     4
5Marbled Godwit2    1
5Ruddy Turnstone     2
5Sanderling2    2
5Dunlin 2    
5Least Sandpiper 19  48
5Western Sandpiper 30  63
5Short-billed Dowitcher     1
5Spotted Sandpiper     3
5Willet72 759
5Wilson’s Phalarope    1 
5Red-necked Phalarope     2
6Bonaparte’s Gull  3   
6Heermann’s Gull380152948990
6Ring-billed Gull461201251 
6Western Gull26507210515085
6California Gull9560  23
6Herring Gull2    1
6Caspian Tern2 2  1
6Royal Tern13 320 10
6Elegant Tern90630305150240
6Black Skimmer   2  
2Red-throated Loon1     
2Pacific Loon11    
2Common Loon21    
2Brandt’s Cormorant 1282  
2Pelagic Cormorant2331  
2Double-crested Cormorant265374754223
2Brown Pelican6265516816217456
3Great Blue Heron2 1445
3Great Egret212235
3Snowy Egret213448
3Green Heron     1
3Black-crowned Night-Heron   225
4Turkey Vulture51 2  
4Osprey111  1
4Cooper’s Hawk   11 
4Red-tailed Hawk22   1
4Peregrine Falcon 1    
9Cassin’s Kingbird1     
9Pacific-slope Flycatcher 1    
9Black Phoebe216462
9California Scrub-Jay   21 
9American Crow6439209
9Common Raven2 2 21
9Oak Titmouse   1  
9Northern Rough-winged Swallow66515  
9Barn Swallow141530351235
9Cliff Swallow325430  
9Bushtit328422 
9Wrentit 11  1
9Cedar Waxwing12     
9House Wren 2    
9Bewick’s Wren1  1  
9Northern Mockingbird 1  1 
9European Starling 236  
9House Finch57138155
9Lesser Goldfinch5251  
9Dark-eyed Junco  1 1 
9White-crowned Sparrow12     
9Song Sparrow5710554
9California Towhee15313 
9Hooded Oriole 1131 
9Red-winged Blackbird2 436 
9Brown-headed Cowbird 13 1 
9Great-tailed Grackle6421 1
9Orange-crowned Warbler311   
9Common Yellowthroat31    
9Yellow Warbler     1
9Yellow-rumped Warbler (Audubon’s)7     
9Wilson’s Warbler  1   
Totals by TypeMarAprMayJunJulAug
1Waterfowl9246368217165
2Water Birds – Other21273925324521687
3Herons, Egrets & Ibis626121324
4Quail & Raptors851312
5Shorebirds448842670145
6Gulls & Terns277940549376244230
7Doves7312225
8Other Non-Passerines831350
9Passerines99891061299659
 Totals Birds7531915968878818617
        
 Total SpeciesMarAprMayJunJulAug
1Waterfowl744332
2Water Birds – Other994524
3Herons, Egrets & Ibis323445
4Quail & Raptors341212
5Shorebirds6813915
6Gulls & Terns857657
7Doves223112
8Other Non-Passerines221220
9Passerines20202017149
Totals Species – 92605644434146


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2 Comments leave one →
  1. Lu Plauzoles's avatar
    Lu Plauzoles permalink
    September 7, 2023 7:45 pm

    Great instructional narrative of a bird walk, Chuck! One of your best. A concise basic course in shorebird ID at Malibu.

    Like

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