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June Loses Gloom: Malibu Lagoon, 23 June 2024

June 28, 2024

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

Don’t miss the quiz at the bottom.

The clouds were almost pebbled. (Ray Juncosa 6-23-24)

Ho hum, another beautiful day in paradise, fighting vaguely the old ennui. I can’t complain, but sometimes I still do, as someone once wrote. We were forewarned the temperature would go over 80°F, but it started at 62° and was only 70° by 11am. I arrived early and counted a mere 125 Brown Pelicans, which appeared to have at least quadrupled before I left but after the time I could tolerate counting them all again. Marie was already there and alerted me to the presence of a Black-necked Stilt and one of the phalaropes, somewhere around, perhaps on the other side of one of the islands. There eventually proved to be two stilts, rarely together, except for the photo below. Many of the birders asked about them: “Have they ever been here before? I don’t recall ever seeing them here.”

Black-necked Stilts (Chris Tosdevin 6-23-24)

My records show for Black-necked Stilts on 319 monthly walks during period 10/21/79 – 6/23/24 (45 1/2 years): 11 appearances and 36 birds total, or 3.4% of the time; 26 birds and 4 of the visits were in April, the remaining 7 visits and 11 birds were scattered over 6 months; they’ve been entirely absent January – March.

So…yeah…not too common at the lagoon. Chances are better for them south at Back Bay Newport, or north at Pt. Mugu NAS where the marshes and tidal flats are more extensive.

North channel looking west. Clear water – you can see the bottom. (Ray Juncosa 6-23-24)

As typical for this time of year, the swallows – Barn, Cliff, Rough-winged and Tree, in that order of abundance – were busily catching bugs and feeding their young. Perched in the island grass just past the north channel (see above) was a small family of Barn Swallows, plus an adult and juvenile Tree Swallow on an adjacent stem of grass. Most people got a decent telescope view, but getting a group photo proved difficult.

Barn Swallow, not quite a juvenile (Ray Juncosa 6-23-24)
The trusty telescope, a bit battered and getting on in years; Boot-toe Island and a few pelicans across the channel. (Ray Juncosa 6-23-24)

We don’t get a lot of phalaropes at the lagoon. Over the years – and the same 319 visits – we have amassed the following:
Wilson’s Phalarope: 4 visits, 4 birds, June-Sept, most recently 7/23/23.
Red Phalarope: 2 visits, 2 birds, Sept & Nov, most recently 11/6/82!!
Red-necked Phalarope: 22 visits, 75 birds, Apr – Nov, except June & Oct., most recently 8/27/23.
Obviously the Red-necked is the most frequent of the three to visit, showing up a whopping 6.9% of the time. I don’t keep these numbers in my head, but I’m well aware that of the three the Red-necked is by far the most common (or least uncommon).

So when we finally located the bird, out poking over the sand and gravel on one of the islands rather than spinning in the water, creating a whirlpool vortex to suck up tiny invertebrates from the depths, I was quite surprised – thrilled, really – to discover that it was not just a Wilson’s Phalarope, but a female in bright alternate plumage. It hung around for most of the morning, moving around a lot. I hope everyone got a good look because it might be a long time before you see this bird in this plumage again.

Wilson’s Phalarope & Willet (Chris Tosdevin 6-23-24)

All three phalarope species fall into that very small group of species that are polyandrous and exhibit reversed sexual dimorphism. This means that the female mates with several males; the males then handle all the nesting and chick-rearing duties while she “moves on,” so to speak. [Women are always elated to hear about this although I can’t imagine why.] She’s more brightly colored than the male, whose drabness helps to camouflage him and his eggy nest. I wrote a three-part blog series a few years back on the close relationship between polyandry and reverse sexual dimorphism, which you can find beginning here. Oddly enough, it leads off with a photo of a female Wilson’s Phalarope in breeding plumage, taken at the lagoon by chapter member and Snowy Plover maven Grace Murayama.

South channel looking north, Osprey post and sandy island tip. The Wilson’s Phalarope particularly liked this sandy area. (Ray Juncosa 6-23-24)

The breeding birds were busy. Here’s an adult male House Finch apparently stuffing some food down a young one’s gullet while another protests.

House Finch frenzy (Chris Tosdevin 6-23-24)

I hand out little lagoon bird checklists to any birder who wants one. I suspect that most birders find them too challenging to read – they double quite nicely as a test for presbyopia – or if they bother to record birds they do it onto eBird over their smartphones. My 2-sided 1/4-page list has 140 birds on it and includes everything that has shown up at least 3.1% of the time. People ask if we ever have to write things in. Last year I wrote in 26 birds. So we regularly find irregular birds.

While on the beach path at the north end of the channels I saw Ruth waving frantically at me while Chris was pointing ahead. “Must be a good bird,” says I to myself. When I got there and figured out which bush it was on, I was pleased to see a male Scaly-breasted Munia (Lonchura punctulata) in breeding plumage. Well, of course it’s an introduced bird, but it’s quite attractive and I couldn’t recall seeing one at the lagoon before. They’ve been in SoCal for decades, expanding their range very slowly. It must be thirty years since I first saw them at Huntington Beach Central Park, only 50 miles to the south. Someone was recently on the LACoBirds chatline looking for sightings of these munias being nest-parasitized by Pin-tailed Whydahs. No whydahs at the lagoon, yet, although they’re not far away at Madrona Marsh. Scaly-breasted Munias are native to SE Asia, from India to China and through Indonesia to the Wallace Line. They’re very attractive and have been popular cage birds for centuries. They must be pretty good at escaping their cages as you can find them all around the world, living in people’s parks and gardens. This species was a new bird to our SMBAS monthly lagoon trip list. Dan Cooper recorded the first one at the lagoon way back on 26 Sep 2016.

Scaly-breasted Munia, a spiffy male (Chris Tosdevin 6-23-24)

The birds were flocking out to sea, and every now and then we’d spot a dolphin’s dorsal fin briefly breaking the surface. More and more birds showed up – pelicans and gulls – so we knew that they’d found a school of fish. In reply to a question concerning what they were eating I replied that Top Smelt comes first to mind but that I really don’t know. Anyone care to opine?

Feeding frenzy at sea (Ray Juncosa 6-23-24)

On our way back to our cars we stopped by the metal “bird hide” to watch a Green Heron on the sand at the west end of the nearby island (see photo below), stalking the water’s edge.

West Channel, looking north, metal “bird hide” on left, narrow channel center, island on right. (Ray Juncosa 6-23-24)

The light was bright, the sun well positioned and we could actually see olive-green on the bird’s back. Suddenly, from the brush behind it, this small rodent-looking animal scuttled across the sand towards the water, and after a few seconds, ran into a small patch of foliage at water’s edge. We watched for a few minutes but it never reemerged. It looked like a well-inflated 10″ sausage with a short naked tail, very small ears and very short legs. We didn’t get a photo. When I got home I googled photos, texts and maps and came up with Botta’s Pocket Gopher Thomomys bottae. It’s the only one of five possible pocket gophers in California that’s in Los Angeles County. Lillian recalled seeing pocket gophers at the lagoon prior to the 2012 lagoon reconfiguration. We have them in our back yard, gnawing on the roots of our bushes, and I’m familiar with their noses, which is all you normally see of them. Nearly all photos of pocket gopher on the web show only the head sticking up out of a hole, but this one has most of the animal.

Botta’s Pocket Gopher Thomomys bottae, in southern Nevada (Wikimedia: VJAnderson)

The photo below shows a Botta’s in almost the same habitat as the lagoon, sans vegetation. This is exactly what the one at the lagoon looked like, scuttling across the sand: a fat furry sausage with a short naked tail.

Botta’s Pocket Gopher, Presidio of San Francisco, 6/2/21 (iNaturalist: ruram11)

In the process of figuring out what this was, I contacted Karen Martin, Pepperdine University professor and beach lover. She passed my query on to coworker Rodney Honeycutt, who informed me that – among other things – pocket gophers like sandy soil and can swim. He sent me a link to a PDF of a study with the intriguing title of “Swimming Ability of Pocket Gophers (Geomyidae)” by Troy L. Best (Univ. of Oklahoma) and E. Blake Hart (Univ. of Kansas. LINK. Among their conclusions they write: “If an “average” Geomys (in water shallow enough for it to occasionally touch the bottom) swam for 362 seconds at an average speed of 17 cm/sec, it could cross a placid body of water more than 50 m across.” The portion of the channel that the gopher headed for was about as shallow and narrow as it is anywhere in the lagoon area, perhaps as narrow as 10 ft, not more than 30 ft. So it could swim across that in 18-54 seconds. I hope the distance was closer to 10 that 30 feet because (see below) this is the sort of thing that can happen to a pocket gopher when out in the open.

Don’t let this happen to your Botta’s Pocket Gopher!….
Balboa Park, San Diego, 3/14/21 (iNaturalist: Andrew Newmark)
…It usually doesn’t turn out well for the gopher. (Grace Murayama 12-20-19)
After reading this blog, Grace sent in the above photo from Malibu Lagoon, taken very close to where I saw my Botta’s Pocket Gopher.

Quiz Time!

All photos are from Malibu Lagoon 6-23-24). No fantasy photos or remote locales.

#1.
#2. Same species?
#3.
#4.
#5. Both species and age.
#6. All three, species & age.

Quiz Answers & credits
#1. Pied-billed Grebe (Chris Tosdevin 6-23-24)
#2. Both are Snowy Egrets (Chris Tosdevin 6-23-24)
#3. Willet, still in breeding (alternate) plumage, which they quickly lose (Chris Tosdevin 6-23-24)
#4. Black Phoebe, commonly near water (Chris Tosdevin 6-23-24)
#5. Black-crowned Night Heron, juvenile, probably same one we had last month (Ray Juncosa 6-23-24)
#6. Two Heermann’s Gulls, left – 1 year old (2nd summer) , right – adult, back from breeding; adult Western Gull behind. Heermann’s come north for the winter. (Chris Tosdevin 6-23-24)

Malibu Lagoon on eBird as of 6-28-24: 7827 lists, 320 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:

  • Mt. Pinos Birds & Butterflies Sat 20 July 8am
  • Malibu Lagoon, Sun. July 28, 8:30 (adults) & 10 am (parents & kids)
  • Malibu Lagoon, Sun. Aug 25, 8:30 (adults) & 10 am (parents & kids)
  • 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: To be announced, Evening Meeting, Tuesday, October 1, 2024, 7:30 p.m.

The SMBAS 10 a.m. Parent’s & Kids Birdwalk is again running. Reservations not necessary for families, but for groups (scouts, etc.), call Jean (213-522-0062).

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 2024:
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 Marie Barnidge-McIntyre, Lillian Johnson, Chris Lord, Chris Tosdevin, Ruth Tosdevin & 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 right side of the chart below is hidden, there’s a slider button inconveniently located at the bottom end 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 2023-241/282/253/244/285/266/23
Temperature53-6451-6246-5462-7257-6462-72
Tide Lo/Hi HeightH+5.06H+5.06H+4.71L-0.14L-0.77L-1.17
 Tide Time100809210936073806350537
1Brant (Black)    2 
1Canada Goose897689
1Cinnamon Teal3 2   
1Northern Shoveler10 4 2 
1Gadwall544024202235
1American Wigeon  4   
1Mallard73512101415
1Green-winged Teal17254   
1Surf Scoter43264  
1Long-tailed Duck   1  
1Bufflehead12     
1Red-breasted Merganser42942 
1Ruddy Duck301    
2Pied-billed Grebe2   11
2Eared Grebe1     
2Western Grebe14240  91
7Feral Pigeon442 53
7Eurasian Collared-Dove 1    
7Mourning Dove 4  25
8Anna’s Hummingbird 12221
8Allen’s Hummingbird555151
2American Coot1484663 1 
5Black-necked Stilt     2
5Black Oystercatcher   4  
5Black-bellied Plover45423  1
5Killdeer18123643
5Semipalmated Plover   9  
5Snowy Plover 2120   
5Whimbrel463942 
5Marbled Godwit52020   
5Wilson’s Phalarope     1
5Spotted Sandpiper   1  
5Willet31542 2
5Greater Yellowlegs   1  
5Ruddy Turnstone52    
5Sanderling710    
5Least Sandpiper1620122  
5Western Sandpiper 820   
6Bonaparte’s Gull   210 
6Heermann’s Gull126016 665
6Ring-billed Gull252001843 
6Western Gull3085581645160
6Herring Gull2 3   
6California Gull27040017060383
6Glaucous-winged Gull331   
6Caspian Tern  2208 
6Forster’s Tern     1
6Elegant Tern   20019025
6Royal Tern3 4602 
2Red-throated Loon 1 2  
2Pacific Loon11    
2Common Loon    1 
2Brandt’s Cormorant 11 35 
2Pelagic Cormorant141 14
2Double-crested Cormorant1828322612024
2Brown Pelican26300171235348125
3Black-crowned Night-Heron1  112
3Snowy Egret763327
3Green Heron     1
3Great Egret   549
3Great Blue Heron1314 3
4Turkey Vulture    1 
4Osprey1  1  
4Red-shouldered Hawk  1   
4Red-tailed Hawk1     
8Belted Kingfisher12    
8Nuttall’s Woodpecker    1 
9Black Phoebe142473
9Cassin’s Kingbird 1 4  
9Warbling Vireo    1 
9California Scrub-Jay2221  
9American Crow10104346
9Common Raven  123 
9Tree Swallow  1  3
9Violet-green Swallow   28 
9No. Rough-winged Swallow  5525
9Barn Swallow  10102020
9Cliff Swallow    306
9Bushtit12122259
9Wrentit12  21
9Blue-gray Gnatcatcher 11   
9House Wren 1  1 
9European Starling2195   
9Hermit Thrush1     
9Scaly-breasted Munia     1
9House Finch121215101511
9Lesser Goldfinch62020252
9Dark-eyed Junco    2 
9White-crowned Sparrow151215   
9Song Sparrow1010141055
9California Towhee121144
9Spotted Towhee  1  1
9Hooded Oriole     1
9Red-winged Blackbird2354  11
9Brown-headed Cowbird  2   
9Great-tailed Grackle 13 23
9Orange-crowned Warbler22111 
9Common Yellowthroat522 1 
9Yellow-rumped Warbler (Aud)6104   
Totals by TypeJanFebMarAprMayJun
1Waterfowl14914472455059
2Water Birds – Other211621268263516155
3Herons, Egrets & Ibis99413722
4Quail & Raptors201110
5Shorebirds1031561232969
6Gulls & Terns345748272362302254
7Doves492078
8Other Non-Passerines687382
9Passerines881581155711892
 Totals Birds91718538647731015601
        
 Total SpeciesJanFebMarAprMayJun
1Waterfowl1079663
2Water Birds – Other885385
3Herons, Egrets & Ibis322435
4Quail & Raptors201110
5Shorebirds8108825
6Gulls & Terns758785
7Doves131022
8Other Non-Passerines232232
9Passerines161922141917
Totals Species – 99575758455244


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