This story hit the Wall Street Journal a week ago, but that site and nearly every other site I checked that stole it or referenced it had it behind a paywall. Here’s a few that aren’t.
BBC Earth, with narration by none other than David Attenborough.
The U.S. Sun, source of this aerial photo below of the Uluwatu, Bali temple. Watch where you step.
There were a few other sites I found, including TicToc, blahblah, ZzZz, etc., that didn’t add anything significant, just more of the same, but here’s a link to an open access scientific paper in Scientific Reports that discusses it in detail. Graph and abstract below. Look for the final comment.
Cohort dominance rank and “robbing and bartering” among subadult male long-tailed macaques at Uluwatu, Bali. [LINK]Jeffrey V. Peterson, Agustín Fuentes & Nengah Wandia.Scientific Reports, volume 12, Article number: 7971 (2022)
Abstract
Robbing and bartering is a habitual behavior among free-ranging long-tailed macaques (Macaca fascicularis) at a single site in Bali, Indonesia. The behavior consists of three main elements: (1) a macaque takes an item from a human; (2) the macaque maintains possession of the item; then (3) the macaque releases or hands off the item after accepting a food offer from a human. In this paper, we analyze data on individual variation in robbing and bartering among subadult males in relation to dominance rank. Using focal animal sampling we collected 197 observation hours of data on 13 subadult males from two groups (6 from Celagi; 7 from Riting) at the Uluwatu temple site from May 2017 to March 2018, recording 44 exchanges of items for food from 92 total robberies following 176 total attempts. We also measured dominance rank using interaction data from our focal animals. Dominance rank was strongly positively correlated with robbery efficiency in Riting, but not Celagi, meaning that more dominant Riting subadult males exhibited fewer overall robbery attempts per successful robbery. We suggest the observed variation in robbing and bartering practices indicates there are crucial, yet still unexplored, social factors at play for individual robbing and bartering decisions.
Thievery and extortion apparently go a long way back in the primate evolutionary tree. Then again, birds steal food and nesting material from each other all the time, so I guess we can blame our dinosaurian or reptilian ancestors; but then again, fish steal nests and food from each other, not to mention spending much of their time actually eating one other, the ultimate in theft; then again there are tens of thousands of obligate parasites species among the roundworms, tapeworms and flukes, so…I don’t know…don’t trust anybody or anything, I guess. Oh well.
Ruddy Duckling “takes to water like a duck” (Chris Tosdevin 7-27-25)
[By Chuck Almdale; Photos by Lillian Johnson, Ray Juncosa, Armando Martinez & Chris Tosdevin]
Last month we were surprised to see three Ruddy Ducks in the lagoon, and our lagoon statistics revealed their prior presence in June only two times in 45 years, on 6/24/07 and 6/27/10. This month we had nineteen: two females with families of eight and nine ducklings. No males to be found; probably hiding in waterside brush, busily molting feathers. A few peculiarities of the Ruddy: they cannot walk upright on land, can sink straight down into the water without leaving a ripple; sometimes lay their eggs in the nest of grebes or other ducks; their seventy-one different names* include blatherskite, dumpling duck, little soldier, sprig-tail and water partridge; 75% of their diet are water plants.
Mom Ruddy Duck and her brood (Armando Martinez 7-27-25)
The day was cloudy and ever-so-slightly cool, but Malibu Beach in July is surprisingly balmy; our range today was 64-70°F (8-11:30am), but average for the past six years is 66-72° for the same time of day. No broiling in the sun here in July; that’s August and September, when you can fry an egg on the sand.
Channel greenery under cloudy skies (Lillian Johnson 7-27-25)
How many people have never noticed the baby-blue eye-ring on the Mourning Dove? Check it out next time you see one staring at you from your window-ledge flower pot where it just built its nest.
Mourning Dove keeping posted (Armando Martinez 7-27-25)
The Pied-billed Grebe was still on its nest in the reeds. I thought it had gotten inundated and left, but I was looking in the wrong spot until Chris Tosdevin pointed my nose at it.
Pied-billed Grebe on nest of piled-up goop. (Chris Tosdevin 7-27-25)
There were a few Caspian’s among the Royal Terns on the beach. Around 9am the Royals were making a terrible racket, then most flew away. It’s tough to tell that this is a Caspian below, but that’s what the extent of the dark undersides of the primaries indicates…and you can just barely make out a dark tip on that red-looking bill.
Caspian Tern diving (Armando Martinez 7-27-25)
There are some swallows nesting under the PCH bridge back in the very dark recesses that I think are Barn Swallow, not Cliff, but it’s so dim there I can’t really tell. Nearly all of what flies under the bridge are Barn. But all the swallow species like sitting on this bare tree right next to the bridge’s west end, although there’s just one lonely juvenile (incomplete dark breast-band) Barn Swallow below.
Barn Swallow (Armando Martinez 7-27-25)
Ruddy Turnstones are back, still in most of their bright breeding colors.
Ruddy Turnstone (Chris Tosdevin 7-27-25)
And we had a scattering of Least and Western Sandpipers in the SW corner of the lagoon, along with other sandpipers, plovers, herons and egrets.
“Well, excuuuse me!” Western bangs into a Least Sandpiper (Armando Martinez 7-27-25)
We had a good variety of plovers although not in large numbers.
Look closely at the bird’s left foot above and you’ll see a snipped of the “semipalmation.”
Sleepy Western Snowy Plover (Armando Martinez 7-27-25)
Phalaropes are another group of birds we don’t see a lot of, and when we do, 90% of the time they’re Red-necked Phalarope. But this time we got a Wilson’s, the one with the longest, thinnest bill, decked out in what looks like the plainest juvenile plumage available. The three phalarope species are among the few dozen “polyandrous with sexual dimorphism reversal” species on the planet. I wrote a short blog series about them a while back. (Link) They’re an interesting group of birds, and most of the women I know enjoy reading about them (can’t imagine why).
Don’t hold your breath waiting for another Red Phalarope to drop in.
Wilson’s Phalarope, caught in the act. (Chris Tosdevin 7-27-25)
Malibu Lagoon Channel Island (Lillian Johnson 7-27-25)
We spotted ten starlings in a palm tree next to the small golf course on the other side of the western wall. First twelve left, leaving seven birds, then five left, leaving five birds, then the remaining eight left.
Eurasian Starlings, how many are there? (Chris Tosdevin 7-27-25)
Juvenile Brown Pelican (Ray Juncosa 7-27-25)
It’s just an optical illusion that this pelican poked its bill clear through its wing.
Keeping a very low profile. Juvenile Brown Pelican. (Ray Juncosa 7-27-25)
It’s tough to tell exactly what this male Bushtit is thinking, but it’s definitely pondering something.
Bushtit male (Chris Tosdevin 7-27-25)
It can be very hard to identify distant flying cormorants, but this crook in the neck ID’s this bird below as Double-crested. As the currently-range-expanding Neotropical Cormorant is very similar, albeit smaller, I like to point out that it does not have that little bit of orange flesh over the eye that you can see on this bird.
Red-breasted Mergansers are back from nesting to the north. This one looks exceptionally flat-headed. Some sort of weird optical illusion?
Red-breasted Merganser (Chris Tosdevin 7-27-25)
And Heermann’s Gull numbers continue to grow, from 13 last month to 36. The most we’ve ever had, out of 307 appearances at the lagoon, was 350 birds on 4/26/15. Compare that to California Gulls who out of 282 appearances have topped 1,000 birds 21 times. I don’t know how far south of their nesting site on Isla Rasa they travel in their post-breeding dispersal, but I’ve seen them up near the Olympic Penn. in Washington. I’m fond of them because they’re very easy to identify in all their plumages.
Heermann’s Gull, adult just barely post-breeding (Chris Tosdevin 7-27-25)
Mother and child: the Gadwall edition.
Gadwall female with duckling (Chris Tosdevin 7-27-25)
This thing is so beautiful that it just has to be edible. But how?
Catch of the day (Ray Juncosa 7-27-25)
As we were leaving we spotted our last species of the day, who had just captured what may be its first meal of the day. Any fish ID-ers out there? Top smelt?
Green Heron (Chris Tosdevin 7-27-25)
Lagoon, beach sea, mountains, city far far away (Lillian Johnson 7-27-25)
*Ruddy Duck names listed in Audubon Society Enclyclopedia of North American Birds, John K. Terres, editor. 1980
Malibu Lagoon on eBird as of 7-27-25: 8693 lists, 2796 eBirders, 321 species Most recent new species seen: Nelson’s Sparrow, 11/29/24 by Femi Faminu (SMBAS member). When the newest species added to the list was seen on a date prior to the most recently seen new species, there is no way I can find to easily determine what that bird is. Another minor nit to pick about eBird.
Birds new for the season: Red-breasted Merganser, Black-bellied Plover, Semipalmated Plover, Western Snowy Plover, Whimbrel, Ruddy Turnstone, Least Sandpiper, Western Sandpiper, Wilson’s Phalarope, Royal Tern, Brandt’s Cormorant, Pelagic Cormorant, Green Heron, Belted Kingfisher, Nuttall’s Woodpecker.. “New for the season” means it has been three or more months since last recorded on our trips.
Many, many thanks to photographersLillian Johnson, Ray Juncosa. Armando Martinez & Chris Tosdevin.
Upcoming SMBAS scheduled field trips; no reservations or Covid card necessary unless specifically mentioned:
Malibu Lagoon, Sun. August 24, 8:30 (adults) & 10 am (parents & kids)
We may do something in early Sept. on a Saturday.
Coastal Cleanup at the Lagoon, Sat. Sept. 20, 9-12
These and any other trips we announce for the foreseeable future will depend upon expected status of the Covid/flu/etc. pandemic, not to mention landslides, 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.
The next SMBAS Zoom program: October 7, to be announced.
The SMBAS 10 a.m. Parent’s & Kids Birdwalk has again resumed. Reservations not necessary for families, but for groups (scouts, etc.), call Jean (213-522-0062).
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 toMarie Barnidge-McIntyre, Femi Faminu, Lillian Johnson & Chris Tosdevinfor contributions made to this month’s census counts.
The species list below was re-sequenced as of 12/31/24 to agree with the California Bird Records Committee Official California Checklist, mostly. 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. Updated lagoon bird check lists can be downloaded here. [Chuck Almdale]
[Posted by Chuck Almdale, all photos from Diana Roberts, 21 July 2025]
A friend glanced out her rear window and saw these California Quail on the deck.
Here’s a closeup of one of the chicks, perhaps a teenager, subadult for sure. Just look at those toes! It’s standing on its own feet!
There was another interested party present, by name of Indigo.
At this moment the quail and cat were not yet aware of the other, separated by the wall below the window. But the commotion made Indigo sit up to see what was going on and spotted the quail, at which moment the quail spotted her, and left.
Another tale of rugged adventure from the eastern Oregon backwoods.
You may have noticed that the advertising went away. We crossed the blog host’s palm with silver and poof! it disappeared.
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