SANTA MONICA BAY AUDUBON SOCIETY BLOG

The weather was quite pleasant for a December field trip: overcast, cool, a slight breeze riffling the lagoon. Several birders, lacking sufficient warm clothing, left early. Some might complain, I suppose, insisting, “But it’s June! It’s supposed to be hot and sunny!” Not I. Some might grumble and call it, “June Gloom.” I call it, “A welcome respite from intolerable heat.” But then I long ago gave up lying for hours in the baking sun, trying to develop the healthy glow of a deep tan. Live and learn.

About twenty birders showed up, most of them new to the lagoon and its birds. I suspect that the regulars, knowing the avian paucity they would encounter, stayed away. I warned those present not to expect a lot, as June is the cruelest month with few birds and low diversity. On the other hand, it can only improve as we move towards winter.

There were plenty of Barn Swallows cruising lagoon and beach, sipping water while on the wing, nabbing any insect foolish enough to leave the safety of the sand. I doubt that Swallows can easily process brackish water, as sea birds can safely drink sea water. However, as the lagoon is quite calm and stirring and mixing of the water may be minimal, it could be that salty water, more dense than fresh water, sinks and stays at the bottom, leaving the lighter fresh water at the surface.

The mullet were jumping. That Ph.D. is still available to anyone who can determine exactly why they jump. I’ve enquired of several fish people (shades of “The Shape of Water”) why they do this, and always receive the same set of possibilities: displaying to the opposite sex, displaying to the same sex, catching aerial insects, avoiding predators, dislodging skin parasites, gulping oxygen, it’s good exercise and stimulates the skin and circulation, it’s just plain fun. My money is on the last.

Heliotrope is currently growing in numerous locations. Of Greek origin, the name means the sun (Helios) + to follow (trepein). Wikipedia says the flowers don’t actually follow the sun, as will sunflowers of many sorts. Did you know that heliotrope is a sign of – in the “language of flowers” (whatever that is) – eternal love, prophetic dreams, healing, wealth and invisibility? (Power Flowers) I’ll bet not. Possessing the power of invisibility rings true in the sense that the plant might kill you and you “shuffle off this mortal coil.” All parts of the plant are “poisonous…cause gastric distress in humans and animals…has slow acting liver toxin which causes liver damage (atrophic hepatosis)… sometimes has a high death rate in cattle…might cause photosensitization…sudden hemolytic jaundice as a response to the toxin and eventually death.” Just because something is natural doesn’t make it either good or safe to eat. (Poisonous Plants – Heliotrope)

Song Sparrows were out and about. Several looked like recent fledglings: indistinct breast streaks, hopping on the open pathway where any crow could snatch them up instead of properly skulking in the bushes, and no tails. They looked like “crombec sparrows.”

For those keeping track, the crombecs – small, nearly tailless African warblers reminiscent of nuthatches – were recently split from the Sylviidae family of Old World Warblers, and – with a few other African warblers – given their own family Macrosphenidae. Hooray! Another new family of birds!

As in May, the beach was unbreached and lagoon water was very high, above sea level at the 8:26 AM high tide. I’d guess that about 8-12” of sand clearance remains. Sand height is lowest towards the east side of the lagoon, and here the sand was smooth and vegetation appeared wave-washed. Full moon is on Wednesday, June 27 at 9:53 PM, and I wouldn’t be surprised if waves come over the beach at this time. When this happens, backwash from the lagoon occasionally cuts a channel back to the sea. So the lagoon water level may rise, or it may drop, which just about covers it. Take your pick.

Snowy Plovers have been busy. Another pair is sitting on two eggs, under the protection of the metal mobile enclosure. The two chicks we saw last month on May 27, which then had just started to fly short distances, appear (to me) to still be there, as two of the four birds present looked like juveniles.

When the birding group came right up to the edge of the protective fence, the adult ran away from the nest and through the orange plastic fencing. I backed the group off about 20 ft. and she returned. The eggs are a pale gray-olive-green color with dark spots and very difficult to see even through a spotting scope. The eggs’  smooth curvature – unlike all the other objects on the beach – is what gives them away, and not the color.

Willets were in all varieties of plumage, from smooth winter gray to almost reddish-brown and heavily barred. They mostly slept, accompanied by a few nodding Whimbrels.

Least Terns repeatedly dropped to the sand, quickly to rise, catch a small fish, then fly about, fish in mouth and calling. The small group of Terns slowly grew throughout the morning, from none at all to four species totalling eleven birds. All the Heermann’s Gulls were adults, and we wondered how their breeding season at Isla de la Rasa in the Sea of Cortez went for them.

I don’t know that it warrants the term “mobbing” – usually reserved for a mixed flock harassing a predator such as a small owl or cat – but two vigorous mockingbirds took turns diving on a crow which occupied their favorite perch, the electric pole at the NE corner of the Malibu Colony, a few feet from the footpath. The crow finally left. Some 10-20 minutes later we spotted two birds soaring very high. They turned out to be a crow, repeatedly diving onto the back of a Red-tailed Hawk. Can one crow constitute a “mob?”

We briefly discussed the fact that small birds will attack a larger bird they consider a predator, and they nearly always get away with it because they are faster and more maneuverable. Dropping down on their foe from behind to peck them on back or head is their favorite tactic. I’m not sure if I’ve ever seen finches or sparrows attack a mockingbird, but mockers will attack jays and crows (then again, mockers will attack anything), jays and crows will attack hawks, and hawks will attack eagles. Sort of a reverse pecking order.

Birds new for the season were: Pied-billed Grebe, Sanderling, California Gull, Red-tailed Hawk, Black Phoebe, Red-winged and Brewer’s Blackbirds, Brown-headed Cowbird.

Many thanks to our photographers: Randy Ehler, Lillian Johnson, Larry Loeher & Grace Murayama.

Our next two scheduled field trips: Malibu Lagoon 8:30 & 10am, 22 July; Malibu Lagoon 8:30 & 10am, 26 August.

Our next program: Luke Tiller will present “Tails from the Platform: Hawks, Hawkwatchers and Hawkwatching”: Tuesday, 2 October, 7:30 p.m., Chris Reed Park, 1133 7th St., NE corner of 7th and Wilshire Blvd. in Santa Monica.

NOTE: Our 10 a.m. Parent’s & Kids Birdwalk meets at the shaded viewpoint just south of the parking area. Watch for Willie the Weasel. He’ll be watching for you and your big floppy feet.

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

Prior checklists:
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 project period, despite numerous complaints, remain available on our Lagoon Project Bird Census Page. Very briefly summarized, the results unexpectedly indicate that avian species diversification and numbers improved slightly during the period Jun’12-June’14.

Many thanks to Lillian Johnson, and Lu Plauzoles for their contributions to the checklist below.  [Chuck Almdale]

Malibu Census 2018	1/28	2/25	3/25	4/22	5/27	6/24
Temperature	67-76	55-62	55-62	63-67	61-66	62-68
Tide Lo/Hi Height	H+5.99	H+5.21	L-.16	L-.15	H+3.86	H+3.50
Tide Time	0609	0459	1213	1028	0912	0826
Cinnamon Teal	1
Northern Shoveler			2
Gadwall	30	8	12	5	12	4
American Wigeon	36	4	8
Mallard	12	6	12	4	15	12
Northern Pintail			1
Green-winged Teal	6	1	6
Surf Scoter	2
Bufflehead	6	8	1
Red-breasted Merganser	3	4	6
Ruddy Duck	13	9	4
Pied-billed Grebe	1	2	1			2
Eared Grebe	2
Western Grebe			25
Clark’s Grebe	1
Rock Pigeon	8	8	10	1	3	2
Eurasian Collared-Dove			1	2
Mourning Dove		2	4		1	2
Anna’s Hummingbird	1	1			1	1
Allen’s Hummingbird	5	1	2	3
Sora		1
American Coot	125	85	75	2	4
Black-bellied Plover	22	25	10		9	1
Snowy Plover	19	34	12	9	3	4
Semipalmated Plover				4
Killdeer	4	10	12	7	4	8
Whimbrel	8	13	9	3	6	3
Marbled Godwit	18	30	7		30
Ruddy Turnstone	1	6	1
Sanderling	30	20	20	45		7
Least Sandpiper	1	3	1	12
Western Sandpiper			10	4
Willet	9	14	6	6	4	18
Bonaparte’s Gull					2
Heermann’s Gull	5		3		1	5
Ring-billed Gull	35	70	10	1
Western Gull	95	92	120	18	112	75
California Gull	1550	550	20			4
Herring Gull	2
Glaucous-winged Gull	5		3
Least Tern					9	2
Caspian Tern			2	8	11	4
Forster’s Tern					2
Royal Tern	12	15	17		2	1
Elegant Tern			3	30	130	4
Black Skimmer			1
Pacific Loon	1	1	3
Brandt’s Cormorant	2		1		1	7
Double-crested Cormorant	73	37	27	18	15	7
Pelagic Cormorant		2	3
Brown Pelican	6	14	37	32	68	5
Great Blue Heron	2	1	2	1	1	2
Great Egret	1	3	2		3	3
Snowy Egret	8	8	6	1	4	5
Green Heron					1
Black-crowned Night-Heron			4	2
Turkey Vulture	1		1		4
Osprey	2	1	1
Red-tailed Hawk	1					1
Merlin		1
Peregrine Falcon	2				1
Nanday Parakeet		4	4
Black Phoebe	3	1	4	1		2
Say’s Phoebe	3	3
Cassin’s Kingbird			1
Western Kingbird			2
American Crow	3	5	4	2	2	4
Common Raven			2
Tree Swallow			3
Violet-green Swallow			6		2
Rough-winged Swallow			3		5
Cliff Swallow			5		8	1
Barn Swallow			15	4	10	15
Oak Titmouse		1
Bushtit	20	35	6	1	20	27
Marsh Wren	1	2	2
Bewick’s Wren	3	2
Blue-gray Gnatcatcher	8	6	2
Ruby-crowned Kinglet	3
Western Bluebird					1
Northern Mockingbird	2	1	3	2	2	2
European Starling	15	10	23
House Finch	20	8	24	4	5
Lesser Goldfinch	1	8	2
Spotted Towhee	1			2
California Towhee	1	2		1	2
Savannah Sparrow		1	2	1
Song Sparrow	4	5	2	10	5	5
White-crowned Sparrow	8	25	28
Dark-eyed Junco			2
Western Meadowlark	2	4
Red-winged Blackbird	6		15	1		7
Brown-headed Cowbird				2		2
Brewer’s Blackbird						1
Great-tailed Grackle	1	2	15	4	4	3
Orange-crowned Warbler	2	1	3	1
Common Yellowthroat	2	4	2	1
Yellow-rumped(Aud) Warbler	12	20	12
Wilson’s Warbler			1
Totals by Type	Jan	Feb	Mar	Apr	May	Jun
Waterfowl	109	40	52	9	27	16
Water Birds – Other	211	142	172	52	88	21
Herons, Egrets & Ibis	11	12	14	4	9	10
Quail & Raptors	6	2	2	0	5	1
Shorebirds	112	155	88	90	56	41
Gulls & Terns	1704	727	179	57	269	95
Doves	8	10	15	3	4	4
Other Non-Passerines	6	6	6	3	1	1
Passerines	121	146	189	37	66	69
Totals Birds	2288	1240	717	255	525	258
Total Species	Jan	Feb	Mar	Apr	May	Jun
Waterfowl	9	7	9	2	2	2
Water Birds – Other	8	7	8	3	4	4
Herons, Egrets & Ibis	3	3	4	3	4	3
Quail & Raptors	4	2	2	0	2	1
Shorebirds	9	9	10	8	6	6
Gulls & Terns	7	4	9	4	8	7
Doves	1	2	3	2	2	2
Other Non-Passerines	2	3	2	1	1	1
Passerines	22	21	27	15	12	11
Totals Species – 90	65	58	74	38	41	37