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Malibu Lagoon Trip Report: 22 February, 2015

February 28, 2015
by

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Here upon a Sunday dreary, birders gathered, bleak and bleary,
Sullen visages we, fearing that the rain would pour —
Is that a truck? No, merely thunder. Might the heavens break asunder?
From the rear then someone wondered, “Afore we venture on yon
Malibu’s near-halcyon* shore…might there be a coffee store?”

“Merely Starbucks, nothing more.”

* Halcyon: Genus of eleven old world species of kingfishers found from Japan to South Africa, including Gray-headed Kingfisher, featured in our upcoming Uganda show.
Also: (Greek) A mythical bird, long associated with the kingfisher, which nested on the sea. Beloved of the gods, they calmed the waves while it incubated and raised its young. Such days of peace and calm became known as “halcyon days.” – A Dictionary of Scientific Bird Names, Jobling.

A pair of Northern Shovelers (R.Ehler 2/22/15)

Northern Shoveler pair (R.Ehler 2/22/15)

Grim forebodings notwithstanding, it was actually a nice morning with the smallest amount of rain possible for it to still be considered rain, not fog or mist. Fear of rain kept people home, apparently, and we had a smaller group of about 20 birders including some first-timers, friends of regular attendees.

Double-crested Cormorant with rings on legs (R.Ehler 2/22/15)

Double-crested Cormorant with rings on legs
(R.Ehler 2/22/15)

A Double-crested Cormorant on the rocks just south of the PCH bridge had rings on its legs. Right leg ring was of dull metal, left leg ring was bright yellow with EN3 on it. We had to scope it from far to the side in order to confirm the code: the picture doesn’t quite capture the letters. One (or more) birders thought that perhaps it had become oiled and captured for cleaning, with the rings placed before release. If so, the bird looked well.

Closeup of rings - EN3 on left leg of DC Cormorant (R.Ehler 2/22/15)

Closeup of rings EN3 on left leg of DC Cormorant (R.Ehler 2/22/15)

Long-billed Curlews are infrequent visitors at the lagoon, and we’ve recorded them only 17 times in 35 years. They prefer seeking invertebrates in grassy fields or on mudflats sufficiently soft to permit their shoving their long bills deeply in. I can’t remember a time when the lagoon was suitable for that. As a result, this species may rest briefly at the lagoon, but they don’t stay long. On the other hand, the smaller and similar Whimbrel is a regular winter resident in small numbers, with 244 appearances of one or more birds over the same 35 years.

Long-billed Curlew (R.Ehler 2/22/15)

Long-billed Curlew (R.Ehler 2/22/15)

Snowy Plovers were mysteriously absent, no explanation given. Neither were there any Sanderlings. Both species are normally present in February.

Gull flock with Malibu Canyon in distance (R.Ehler 2/22/15)

Gull flock with Malibu Canyon and PCH bridge in background
(R.Ehler 2/22/15)

We had plenty of time to search the several large flocks of gulls. Only one Heermann’s Gull was found; the rest may have left for their breeding grounds on islands near the south tip of Baja California, where really hot weather necessitates an early breeding season. Most were California Gulls, with about 5% each of Western and Ring-billed Gulls. Four Glaucous-winged Gulls were found, one of which was an adult bird in breeding (alternate) plumage, which we rarely see at the lagoon. Glaucous-wings breed in southwestern Alaska from Anchorage to Nome, and winter regularly to Portland, OR. They winter in small numbers in SoCal, but most are first-winter birds. This particular individual was a beautiful gull and it was nice to see it. Royal Tern numbers continued to grow as the morning wore on, and some of them were already in alternate plumage. The Elegant Terns are still off on their winter break, but they’ll probably be back next month.

Male Northern Pintail, no longer common at the lagoon (R.Ehler 2/22/15)

Male Northern Pintail, no longer common at the lagoon (R.Ehler 2/22/15)

Some very nicely plumaged ducks tooled around the lagoon and channel (see pictures). Overhead the Osprey regularly glided by, but I never saw him catch a fish despite the presence of large and eminently desirable “jumping” mullet in the lagoon.

Osprey (R.Ehler 2/22/15)

Osprey (R.Ehler 2/22/15)

Many thanks to Randy Ehler who contributed all of the photos today. Randy’s many photos have graced and vastly improved the appearance and interest of our reports, beginning with his contribution in October, 2013 of nine photos.

Birds new for the season were:
Long-billed Curlew, Common Raven, Hermit Thrush, California Towhee. We don’t consistently get over to Adamson House during the winter when the lagoon outlet cuts through the beach, which may be why birds that are always around like Anna’s Hummingbird and House Finch have been missed.

Our next three scheduled field trips:  Hiker Lu’s Santa Monica Explorama, 14 Mar, 8:30m; Malibu Lagoon, 22 Mar, 8:30 & 10am; Wilson, O’Melvany or Walker Ranch, 11 Apr, 8:30am.

Our next program: Tuesday, 3 Mar, 7:30 pm. Birds, Primates and other Animals of Uganda, presented by Edie Gralle. PLEASE NOTE THAT OUR MEETING PLACE HAS CHANGED TO DOUGLAS PARK, 2439 WILSHIRE BLVD.

NOTE: Our 10 a.m. Parent’s & Kids Birdwalk meets at the shaded viewing area. Watch for Willie the Weasel.
Links: Unusual birds at Malibu Lagoon
Aerial photo of Malibu Lagoon from 9/23/02.
Prior checklists:
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 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.   [Chuck Almdale]

Trip List 2014-15 9/28 10/26 11/23 12/28 1/25 2/22
Temperature 68-75 62-72 60-70 39-61 73-81 55-63
Tide Lo/Hi Height H+5.35 H+5.93 H+6.41 L+1.70 L+1.32 H+4.51
Tide Time 1149 1044 0849 0903 0705 1137
Gadwall 3 26 22 30
American Wigeon 10 18 18
Mallard 23 3 2 10 12 12
Northern Shoveler 4 25
Northern Pintail 2 3
Green-winged Teal 1 12 25 12
Surf Scoter 13 15
Bufflehead 8 4 2
Hooded Merganser 4
Red-brstd Merganser 25 25 4 2
Ruddy Duck 2 36 42 38 35
Red-throated Loon 3 1
Pacific Loon 6 1 3
Common Loon 1 1
Pied-billed Grebe 11 3 1 8 2 1
Horned Grebe 2 2 4 2 1
Eared Grebe 6 18 8 12 3
Western Grebe 6 12 2 5 15
Brandt’s Cormorant 1 2 130 1
Dble-crstd Cormorant 45 26 9 120 35 50
Pelagic Cormorant 3 1 1 1
Brown Pelican 42 26 32 95 50 28
Great Blue Heron 1 2 4 3 2 2
Great Egret 3 4 4 4 2
Snowy Egret 15 20 20 18 16 26
Blk-crwnd N-Heron 1
Turkey Vulture 1
Osprey 1 1 1 1 1
White-tailed Kite 1
Sharp-shinned Hawk 1
Cooper’s Hawk 1
Red-shouldered Hawk 1 1 1
Red-tailed Hawk 3 1 1 1
American Coot 85 20 100 135 88 145
American Avocet 1
Blk-bellied Plover 95 40 45 38 62 85
Snowy Plover 40 34 40 25 29
Killdeer 18 1 1 17 12 12
Spotted Sandpiper 5 4 2 6 3 3
Greater Yellowlegs 1
Willet 45 6 4 10 4 3
Whimbrel 9 1 1 1 4 4
Long-billed Curlew 1
Marbled Godwit 4 5 3 12 12 10
Ruddy Turnstone 12 4 6 6 5
Sanderling 10 32 32 28 8
Least Sandpiper 2 1
Boneparte’s Gull 2 2 1
Heermann’s Gull 4 5 1 18 17 1
Ring-billed Gull 3 60 65 150 90
Western Gull 95 40 81 230 170 95
California Gull 1500 1650 1600
Herring Gull 1
Glaucous-wingd Gull 3 5 4
Forster’s Tern 2 3
Royal Tern 8 22 42 35
Elegant Tern 18 17 4
Rock Pigeon 15 6 6 4 5
Mourning Dove 3 2
Vaux’s Swift 3
Anna’s Hummingbird 1 1
Allen’s Hummingbird 6 3 4 2 3
Belted Kingfisher 1
Nuttall’s Woodpecker 1
American Kestrel 1 1 1
Peregrine Falcon 1
Yel-chevroned Parakeet 2
Willow Flycatcher 1
Pac.Slope Flycatcher 1
Black Phoebe 12 2 1 2 1 2
Say’s Phoebe 3 2 2 1
Cassin’s Kingbird 1
Warbling Vireo 2
Western Scrub-Jay 1
American Crow 6 7 8 4 6
Common Raven 2
Rough-wingd Swallow 3
Barn Swallow 1
Cliff Swallow 3
Oak Titmouse 1 1
House Wren 1
Blue-gray Gnatcatcher 1
Ruby-crowned Kinglet 1 2
Hermit Thrush 2
Northern Mockingbird 3 2 2 1 1
European Starling 115 60 60 25 45 3
Cedar Waxwing 2
Ornge-crwnd Warbler 3
Nashville Warbler 2
Common Yellowthroat 9 4 2 4 3 3
Yellow Warbler 3 1
Yellow-rumpd Warbler 40 2 15 7 8
Townsend’s Warbler 1
Spotted Towhee 1
California Towhee 4 1 1
Savannah Sparrow 3
Song Sparrow 7 2 3 2 6
White-crwnd Sparrow 15 15 35 4 12
Bobolink 1
Western Meadowlark 6 6 7 14 24 10
Great-tailed Grackle 1 3 1 5 4
House Finch 22 4
Lesser Goldfinch 15 3 1 2
Totals by Type Sep Oct Nov Dec Jan Feb
Waterfowl 26 5 64 141 138 154
Water Birds – Other 193 102 166 516 187 247
Herons, Egrets & Ibis 20 26 28 25 18 30
Quail & Raptors 7 4 2 5 2 2
Shorebirds 240 127 135 144 139 119
Gulls & Terns 128 66 151 1839 2035 1825
Doves 15 6 0 6 7 7
Other Non-Passerines 13 3 1 4 3 3
Passerines 242 150 76 114 106 61
Totals Birds 884 489 623 2794 2635 2448
             
Total Species Sep Oct Nov Dec Jan Feb
Waterfowl 2 2 4 9 9 10
Water Birds – Other 7 8 8 11 9 11
Herons, Egrets & Ibis 4 3 3 3 2 3
Quail & Raptors 5 4 2 5 2 2
Shorebirds 10 9 10 10 9 8
Gulls & Terns 5 5 6 7 7 6
Doves 1 1 0 1 2 2
Other Non-Passerines 5 1 1 1 2 1
Passerines 27 15 8 12 16 14
Totals Species – 103 66 48 42 59 58 57

Hot off the (real) Press!

February 19, 2015
tags:
by

An extensive, carefully-written article about our Western Snowy Plovers, is featured on the front page and covering most of three pages of today’s Argonaut newspaper. Thank you Rebecca Kuzins, a frequent participant in our monthly Malibu Lagoon walks.

On the web you can find the article at http://argonautnews.com/tiny-bird-big-challenge/

plovers

LucienP

King Tides On The Bay

February 16, 2015

SNPL

On Santa Monica Bay, local avian stars  such as snowy plovers and terns are going to be among the first to lose nesting, foraging and roosting habitat with rising sea levels, especially  in places like Venice Beach and Malibu Lagoon.But there’s something simple you dan do.

Help document the impact of riding tides 

Just snap a pic on your cell and forward it to the link below if you are going to be out on any beach in the next few days near high tide.

http://california.kingtides.net

Over time, a photographic database of the impact of rising tides will help determine what steps to take to mitigate lose of shoreline.

Laurel Hoctor Jones, Education Chair

Salton Sea Area Trip Report: 7-8 February, 2015

February 13, 2015

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Reeds and mountains (D. Roberts 2/8/15)

Reeds and mountains (D. Roberts 2/8/15)

It was a great trip. The weather was near-perfect – no one would have complained if it were 5° lower – and no rain to turn the caliche roads to mud and tires into slicks. Our radios worked, no cases of food poisoning or scorpion stings, no one was seriously late, and many state, USA or life birds were found. Zone-tailed Hawk, Crested Caracara and Crissal Thrasher were the only notable misses. It’s best to look for Crissal very early in the morning, difficult to do when you cannot be simultaneously everywhere.

The Davis Rd. salt works and/or salt bath spa (D. Roberts 2/8/15)

The Davis Rd. salt works and/or salt bath spa (D. Roberts 2/8/15)

My general impression of the birdlife of the south end of the Salton Sea (SESS) is that overall numbers declined since 2012, but diversity is holding steady, or even up a little. We still had large numbers of certain species: Snow & Ross’s Geese, Northern Shoveler, Northern Pintail, Cattle Egret, White-faced Ibis, Ring-billed Gull and California Gull. Although our “counts” are extremely rough approximations, even these species seemed somewhat fewer. Other species definitely seemed reduced in numbers, for example: American White Pelican, Black-necked Stilt, Common Raven, and Red-winged Blackbird. Then again, most of those species are found in flocks – miss one flock and you miss most of that species. Perhaps such variances mean nothing at all.

Neotropic Cormorants - Note white border to gular pouch (J. Waterman 2/7/15)

Neotropic Cormorants – Note white border to gular pouch (J. Waterman 2/7/15)

We checked out two new areas. A few miles east of Brawley is the New River Wetlands Project, with scrub surrounding a pond about 100m X 300m. A large flock of Great Egrets roosted in some nearby trees. The Crested Caracara reported to be in the vicinity did not appear; later we learned it prefers late afternoon. While Marsh Wrens madly burbled in the reeds, we studied cormorants roosting on water-snags, trying to figure out which – if any – was a Neotropic. After much scratching of heads, Joyce cleverly noted that several had a varying amount of narrow white border to their orange gular pouches, a field mark I had forgotten. [Neotropic Cormorants are casual visitors to SE Calif; I last saw one here in 1986.]

We found some of our target birds at the Wister Unit parking lot: Gambel’s Quail, Verdin, Abert’s Towhee and the only Inca Doves of the trip. An immense amount of brush as well as the nature trail is gone from the west side of Davis Rd. for reasons we couldn’t guess, leaving a barren moonscape. A stop at the old salt works spa produced our first Burrowing Owl sitting on a concrete box-like affair, while a short distance away we found a large mixed flock of Rough-winged, Tree, Barn and Cliff Swallows resting on overhead wires and poking about in a muddy field. Many of the Tree Swallows were blindingly iridescent blue.

Burrowing Owl at his burrow (J. Waterman 2/7/15)

Burrowing Owl at his burrow (J. Waterman 2/7/15)

The Roseate Spoonbill, a major target bird for California, proved to be at the end of Garst Rd. as reported, albeit at a vast distance, tiny even in our best scopes. Its off-white, very pale pink plumage was spotted by David, I don’t know how. I suspect that some of our 16 birders – even after many minutes of viewing – remained unconvinced. I was fortunate to see it crane its neck, giving me a glimpse of its large gray spoonish bill.

Gambel's Quail (J. Waterman 2/7/15)

Gambel’s Quail (J. Waterman 2/7/15)

The Salton Sea Park HQ at the west end of Sinclair Rd. is a great place for lunch. Bathrooms, shaded picnic tables, water, and viewing platforms to check out the geese, many of which are real – not cutout figures, pivoting on poles in the breeze. Several seed feeders bring birds in close, particular Abert’s Towhees, Gambel’s Quail and various doves. Verdin build their globular nests in the mesquite trees. I bumped into birding compatriot Roy Poucher who kindly mentioned that a Yellow-footed Gull was out on the sea-edge, within walking distance, and after lunch we make the trek.

Common Ground Dove - note scaly breast & brown-spotted wings (J. Waterman 2/7/15)

Common Ground Dove – note scaly breast & brown-spotted wings
(J. Waterman 2/7/15)

As usual with rare gulls, they’re buried amongst thousands of similar gulls. David and I scoped the shoreline, starting from opposite ends of a long line of gulls disappearing into the distance in both directions, almost all Ring-bills with a few scattered Herring. Much to my surprise, I found it not far away, its large size and dark gray back obvious – well, sort of obvious– among hordes of lighter gulls. But it was lying down. So we all watched, wishing it would rise.

The Yellow-footed Gull stands among lesser mortals. (J. Waterman 2/7/15)

The Yellow-footed Gull stands among lesser mortals (J. Waterman 2/7/15)

It wouldn’t move, so we clambered down the stone embankment, the gulls beconing restive as we reached the edge of their comfort zone. Our target gull stood up, we all admired its bright yellow legs and congratulated ourselves on our good fortune, and left.

Sandhill Cranes (J. Waterman 2/7/15)

Sandhill Cranes (J. Waterman 2/7/15)

At Unit One – the Sonny Bono unit at the SW corner of the sea – we found a single White-fronted Goose within a large flock of Snow and Ross’s Geese, with Sandhill Cranes field-gleaning in the distance. Sundown approached. We made it back to Keystone Rd. SE of Brawley by 4:30, with plenty of time to watch Cattle Egrets and White Pelicans soar past enroute to the sea, gulls and ducks and White-faced Ibis splash down in the embanked pond nearby, and especially for the ululating of the Sandhill Cranes as they spiraled down to the water. It was, as always, a magical moment.

Gila Woodpecker (J. Waterman 2/7/15)

Gila Woodpecker (J. Waterman 2/7/15)

Sunday morning began with a drive through the tree-filled SW Brawley residential neighborhood, which yielded our first pair of Gila (Hee-laa) Woodpeckers. Cattle Call Park had more, plus Cedar Waxwings and other small birds. No Zone-tailed Hawks appeared. We checked out another new area, known locally as Carter & Fites, a small undeveloped brushy forest, mostly mesquite, where Crissal Thrashers could be found. Alas, none were. And not much else, either, except a few Phainopeplas, a Blue-gray Gnatcatcher, some Verdin, and a honeybee who was obsessed with my hearing aids.

We shot back over to the east side of Brawley to revisit the Neotropic Cormorants with Saturday’s late-arriving contingent. That done, we headed home via Hwy 111 on the now-closer east side of the sea, which led us to try for the Lesser Black-backed Gull at Salt Creek, halfway up the sea’s eastern edge. It was a virtual repeat of the prior day’s Yellow-footed Gull search, with two differences: the thousands of other gulls were mostly California, and I incautiously wore sandals to stroll upon what I thought to be a sandy

Birders on the shelly beach at Salt Creek (D. Roberts 2/8/15)

Birders on the shelly beach at Salt Creek (D. Roberts 2/8/15)

beach. Not. Sand. Tiny razor-sharp shells, trillions of them, knee-deep in places. Despite this, we actually found the gull, dark-backed among the pale gray gulls, heavily streaked on head and neck, bright light eye and yellow feet, dark wing-tipped below, a dead ringer for one of the pictures in Gulls of the Americas. I’ve searched for this annually reported gull at the sea several times before, often wondering if it was someone’s hypnogogic hallucination.

Celebratory date shakes all around.

The gorget of the male Costa's Hummingbird is purple with long side 'extensions' (J. Waterman 2/7/15)

The gorget of the male Costa’s Hummingbird is purple with long side ‘extensions’ (J. Waterman 2/7/15)

Useful Resources:
Finding Birds at the Salton Sea and in Imperial County, California; Henry Detwiler & Bob Miller; 2012; $18.
Available at Buteo Books and elsewhere.
Southwest Birders Web Site

Links to prior trips:   February 2012     February 2010
Trip list counts from 1 to 10 are reasonably accurate. All larger numbers are estimates intended only to reflect relative abundance.  [Chuck Almdale]
H – Heard Only
In Bold – Bird of Special Interest

Salton Sea Trip Lists 2/7-8/15 2/11-2/12 2/6-7/10
Greater White-fronted Goose 1
Snow Goose 1000+ 1000+ 6000+
Ross’s Goose 200+ 300+ 500+
Gadwall 50 40 10
Eurasian Wigeon 1
American Wigeon 80 200 30
Mallard 30 100 60
Blue-winged Teal 2
Cinnamon Teal 4 25 4
Northern Shoveler 1000+ 1000+ 1000+
Northern Pintail 1000+ 1000+ 1000+
Green-winged Teal 200 400 30
Redhead 1 60 4
Lesser Scaup 1 3 100
Bufflehead 10 5
Common Goldeneye 6
Ruddy Duck 70 80 300
Gambel’s Quail 40 30 16
Pied-billed Grebe 4 5
Horned Grebe 1
Eared Grebe 80 50
Western Grebe 3 2
Neotropic Cormorant 3
Double-crested Cormorant 1000+ 200 200
American White Pelican 100 1000+ 300
Brown Pelican 50 100 20
Great Blue Heron 15 30 10
Great Egret 60 20 20
Snowy Egret 5 50 4
Cattle Egret 1000+ 1000+ 1000+
Green Heron 1
Black-crowned Night-Heron 1 20 1
White-faced Ibis 1000+ 1000+ 400
Roseate Spoonbill 1
Turkey Vulture 15 20 15
Osprey 1 1
White-tailed Kite 5 1
Northern Harrier 25 30 20
Sharp-shinned Hawk 1
Cooper’s Hawk 1 1
Zone-tailed Hawk 1 1
Red-tailed Hawk 40 40 25
Ridgway’s Rail H1
Sora H1 1
Common Gallinule 1
American Coot 100 50 500
Sandhill Crane 400+ 300 185
Black-necked Stilt 50 400 100
American Avocet 100 500 30
Black-bellied Plover 10 10
Killdeer 100 100 100
Mountain Plover 60
Spotted Sandpiper 5 1
Greater Yellowlegs 4 4 2
Lesser Yellowlegs 1
Long-billed Curlew 50 75 500
Marbled Godwit 30 30 40
Least Sandpiper 70 20 50
Long-billed Dowitcher 20 100 200
Ring-billed Gull 3000+ 1000+ 5000+
Yellow-footed Gull 1 4
California Gull 1000+ 500
Herring Gull 20 10
Lesser Black-backed Gull 1
Glaucous-winged Gull 2
Caspian Tern 5 60 30
Forster’s Tern 1
Black Skimmer 1
Rock Pigeon 60 50 10
Eurasian Collared-Dove 100 70 60
Inca Dove 2 2
Common Ground-Dove 20 12 20
White-winged Dove 6 2 4
Mourning Dove 40 50 300
Greater Roadrunner 2 4 1
Burrowing Owl 3 1 9
Anna’s Hummingbird 3 2 2
Costa’s Hummingbird 5 1
Belted Kingfisher 1 2 1
Gila Woodpecker 6 4 2
Ladder-backed Woodpecker 2
Northern Flicker 10 4 1
American Kestrel 20 20 20
Peregrine Falcon 1 1
Prairie Falcon 1
Black Phoebe 35 12 10
Say’s Phoebe 10 6 3
Vermilion Flycatcher 1
Western Kingbird 2
Loggerhead Shrike 2 6 2
Common Raven 25 200 20
Horned Lark 100
No. Rough-winged Swallow 10
Tree Swallow 50 60 20
Barn Swallow 40 200
Cliff Swallow 80
Verdin 10 9 3
Marsh Wren 2+H20 H4 3
Bewick’s Wren 1
Cactus Wren 2
Blue-gray Gnatcatcher  2 3 2
Ruby-crowned Kinglet 8 2
Mountain Bluebird 2
American Robin 2 20
Northern Mockingbird 30 25 2
European Starling 150 100 50
American Pipit 30 40 100
Cedar Waxwing 5
Phainopepla 2
Lapland Longspur 1
Orange-crowned Warbler 2 3
Common Yellowthroat 2
Yellow-rumped Warbler 40 31 20
California Towhee 2
Abert’s Towhee 20 10 12
Chipping Sparrow 1
Savannah Sparrow 1 4
Song Sparrow H2 4 4
White-crowned Sparrow 50 60 50
Red-winged Blackbird 200 1000+ 10,000+
Tricolored Blackbird 1
Western Meadowlark 20 60 200
Yellow-headed Blackbird 5 30
Brewer’s Blackbird 40 40 200
Great-tailed Grackle 60 50 40
Brown-headed Cowbird 6 30 20
House Finch 30 100 30
Lesser Goldfinch 10 4
American Goldfinch 7
House Sparrow 30 100 30
     Total Species – 130 100 103 92

Selasphorus Hummingbirds in Southern California

January 29, 2015
by
Less green on the back of this Allen's Hummingbird(R. Ehler 1/25/15)

Less green on the back of this Allen’s Hummingbird
(R. Ehler 1/25/15)

Lots of green on the back of this Allen's Hummingbird(J. Waterman 1/25/15)

Lots of green on the back of this Allen’s Hummingbird
(J. Waterman 1/25/15)

This could be a photo quiz, but isn’t.  Instead, I’ll use these two photos of a Selasphorus hummingbird to make a comment. Local birders often refer to these rufous-flanked (-tailed, -backed, etc.) hummers as Selasphorus because 1) that’s their genus, and 2) they’re often impossible to tell apart in the field, especially the two most common in SoCal, Rufous and Allen’s. [Broad-tailed prefers the Rockies, while Volcano, Scintillant and Glow-throated are only in Central America.] There are differences between these two in their vocalizations, courtship displays and central tail feathers if you can witness them. Both males have rufous flanks and overlap considerably in the amount of green on the back. Allen’s subspecies sedantarius is resident along our coast, while both Rufous and Allen’s subspecies sasin migrate through to northern nesting grounds. Except during migration, any local selasphorus is likely to be an Allen’s. [Just to complicate things, Rufous begin migrating north as early as late January.] The point is that they are very hard to tell apart. I sent these two pictures to Kimball Garrett, bird collection manager at the Natural History Museum of L.A. County, as I wasn’t certain the “smaller-appearing” left (or first) bird wasn’t a Rufous. He replied, “Yes, both adult male Allen’s….Notice how the extent of visible green on the back varies with the [viewing] angle — this has tripped up lots of observers….Allen’s can appear to have very little green above if viewed from the sides (as there is rufous lateral and posterior to the green); I think a lot of late fall/early winter claims of Rufous are from inadequate views of typical male Allen’s.” These two photos might be of the same individual Allen’s – viewing angles, feather position and lighting differences play tricks on our eyes – but I strongly doubt it. Many thanks to Randy & Joyce for the photos.

[NOTE: This comment was originally part of the “Malibu Lagoon Trip Report: 25 January, 2015” blog.]   [Chuck Almdale]