A PHOTOGRAPHIC GUIDE TO
BIRDS OF APOLLO PARK, LOS ANGELES COUNTY, CA
© 2012 Callyn D. Yorke, Ph.D.
INDEX TO REPRESENTATIVE TAXA
ANSERIFORMES (Swans, Geese and Ducks )
GALLIFORMES (Quail, Pheasants and Partridges)
COLUMBIFORMES (Pigeons and Doves)
CAPRIMULGIFORMES (Nightjars and Nighthawks)
APODIFORMES (Swifts and Hummingbirds)
CHARADRIIFORMES (Sandpipers, Plovers, Gulls and Terns)
SULIFORMES (Cormorants and Boobies)
PELECANIFORMES (Pelicans Herons, Ibis)
CATHARTIFORMES (New World Vultures)
ACCIPITRIFORMES (Osprey, Hawks and Eagles)
PASSERIFORMES (Perching and Song Birds)
KEY TO ABBREVIATIONS
SEXUAL DIMORPHISM AND DEVELOPMENTAL STAGE (if known) a = adult; imm = immature; m = Male; f = Female;
STATUS (SEASONALITY AND ABUNDANCE) Y = Usually present (e.g. non-breeding birds) in Southern California all year (e.g. coastal or mountains); M = Migratory; V= Vagrant; A = Abundant (> 10 per survey at the appropriate season); C (5 -10); FC (3-4); U (1-2); R (0-1). (For survey details please go to my Field Notes on Apollo Park). For a general (incompletely documented) checklist of the birds of Apollo Park, Google eBird and follow these steps: 1) View and Explore Data 2) Bar Charts (then press continue at bottom of page) 3) Region (California) and Subregion (Hotspots) Select Apollo Park from the alphabetical listing, then press continue at bottom of page 4) Scroll through species and seasonal abundance; print (bar graph doesn't show).
Order ANSERIFORMES (Swans, Geese and Ducks)
Tundra Swan (Cygnus columbianus) (a; M, R) 60th Street West and Ave. B, Jan. 2011
© 2011 Callyn Yorke
Canada Goose (Branta canadensis) (Y,M,A) Apollo Park, May 5, 2010 © 2010 Callyn Yorke 
Aleutian Cackling Goose (Branta hutchinsii) (a; M,R) Apollo Park, October 28, 2010
Banded by CDFG on Dec. 19, 2007 in Manteca, CA as a hatchling year female. © 2010 Callyn Yorke
Greater White-fronted Goose (Anser albifrons) (M,R) in Apollo Park, February 1, 2010 © 2010 Callyn Yorke
Snow Goose (Anser caerulescens) (imm; M, R) Aug. 26, 2011 Apollo Park
© 2011 Callyn Yorke
Ross' Goose (Anser rossii ) (M, R) in Apollo Park, February 1, 2010 
© 2010 Callyn Yorke
A Comparison of Snow Goose (L) and Ross's Goose (R) Apollo Park, June 14, 2011
© 2011 Callyn Yorke
Gadwall (Mareca strepera) (a,m; YM,U) Lake Palmdale Gadwall (female) Apollo Park, September 26, 2011
© 2010 Callyn Yorke © 2011 Callyn Yorke
Mallard (Anas platyrhynchos) (m,f; YM,A) in Apollo Park, February 1, 2010 © 2010 Callyn Yorke 
Northern Shoveler (Spatula clypeata) (m; YM,C) in Los Angeles County, CA © 2010 Callyn Yorke 
American Wigeon (Mareca americana) (m,m,f; M,FC) Orange County, CA © 2009 Callyn Yorke
Cinnamon Teal (Spatula cyanoptera) (f, m; YM, U) Lake Palmdale, CA May 3, 2010
© 2010 Callyn Yorke
Female Cinnamon Teal (left 2), Blue-winged Teal (center) and Northern Shoveler (right) Galileo Hill Park, Sept. 4, 2011
© 2011 Callyn Yorke
Blue-winged Teal (Spatula discors) (m; YM, U) November 28, 2010 Indio, Riverside County, CA
© 2010 Callyn Yorke
Green-winged Teal (Anas crecca) (m; YM U) January 1, 2011 Malibu Lagoon, Los Angeles County, CA
© 2011 Callyn Yorke
Ring-necked Duck (Aythya collaris) (m,f; M,U) San Diego County, CA © 2009 Callyn Yorke
Canvasback (Aythya valisineria) ( m,f; MU) Kern County, CA © 2010 Callyn Yorke 
Redhead (Aythya americana) (f, m, imm; YM,U) Lake Palmdale, CA © 2010 Callyn Yorke
Lesser Scaup (Aythya affinis) (m,f; M, FC)
Greater Scaup (Aythya marila) (f, M,R) Quail Lake, LACO, CA Dec. 24, 2011
© 2011 Callyn Yorke
Bufflehead (Bucephala albeola) (m; M,FC) San Diego County, CA © 2009 Callyn Yorke
Common Goldeneye (Bucephala clangula) (m; M, U) Lake Palmdale
© 2010 Callyn Yorke
Wood Duck (Aix sponsa) (f,m; YM,R) Orange County, CA © 2009 Callyn Yorke
Hooded Merganser (Lophodytes cucullatus) (m,f; M,R) in Apollo Park, November 7, 2011
© 2011 Callyn Yorke
Common Merganser (Mergus merganser) (m,m; M,U) Los Angeles County, CA © 2009 Callyn Yorke
Red-breasted Merganser (Mergus serrator) (f; YM,R) Apollo Park, Nov. 18, 2010
© 2010 Callyn Yorke
White-winged Scoter (Melanitta fusca) (f; M, R) Quail Lake
Surf Scoter (Melanitta perspicillata) (a, m; imm; M, R) San Diego and Los Angeles County, CA
© 2011 Callyn Yorke
Ruddy Duck ( Oxyura jamaicensis ) ( m; YM,A) in Apollo Park, February 1, 2010. © 2010 Callyn Yorke
Male Ruddy Duck (Oxyura jamaicensis) showing courtship postures in breeding plumage. Lake Palmdale, CA March 12, 2010
© 2010 Callyn Yorke
EXOTIC (Introduced Domestic and Hybrid) WATERFOWL of Apollo Park (February 1, 2010)
Swan Goose (Anser cygnoides) (m; Y, FC) Gray-lag Goose (Anser anser) (Y, C) © 2010 Callyn Yorke
©2010 Callyn Yorke
Muscovy Duck (including probable Mallard hybrids) (Cairina moschata) (f,m; Y,FC) © 2010 Callyn Yorke
Domestic Mallard (Anas platyrynchos) (m,f,m; Y,A) © 2010 Callyn Yorke
Domestic Mallard (Anas platyrhynchos) (f,m; Y,A) © 2010 Callyn Yorke
Order Galliformes (Quail, Pheasants, Partridges)
California Quail (Callipepla californica ) (m, Y, FC) Los Angeles County, CA
© 2009 Callyn Yorke
Common Loon (Gavia immer) (M,U) Lake Palmdale © 2013 Callyn Yorke
Order PODICIPEDIFORMES (Grebes)
Eared Grebe (Podiceps nigricollis) (YM, C) Apollo Park 
© 2009 Callyn Yorke
Horned Grebe (Podiceps auritus) (a; M,R) Bolsa Chica, Orange County, CA
© 2010 Callyn Yorke
Pied-billed Grebe (Podilymbus podiceps) (YM, C) in Apollo Park © 2010 Callyn Yorke
Western Grebe (Aechmophorus occidentalis) (YM, U) Santa Barbara County, CA © 2010 Callyn Yorke
Clark's Grebe (Aechmophorus clarkii) (a; YM,U) Santa Barbara County, CA © 2010 Callyn Yorke 
Order SULIFORMES (Cormorants and Boobies)
Double-crested Cormorant (Phalacrocorax auritus) (YM, C)
Apollo Park, February 1, 2010 © 2010 Callyn Yorke
Order PELECANIFORMES (Pelicans, Herons, Egrets and Ibises)
American White Pelican (Pelecanus erythrorhynchos) (a; M,U) Salton Sea, CA 
© 2010 Callyn Yorke
Great Blue Heron (Ardea herodias) (YM, U) in Apollo Park, February 1, 2010. © 2010 Callyn Yorke
Snowy Egret (Egretta thula) (YM, U) Orange County, CA © 2009 Callyn Yorke
Great Egret (Ardea alba) (a;YM,U) Santa Barbara County, CA © 2010 Callyn Yorke 
Black-crowned Night Heron (Nycticorax nycticorax) (a, imm YM, FC) Apollo Park 
© 2010 Callyn Yorke
Juvenile Black-crowned Night Herons, Apollo Park May 27, 2011
© 2011 Callyn Yorke
Cattle Egret (Bubulcus ibis) (a; YM,R) Apollo Park, 18 May, 2012
© 2012 Callyn Yorke
Green Heron (Butorides virescens) (imm; YM,R) Lake Palmdale, LACO, CA 19 October, 2011
© 2011 Callyn Yorke
White-faced Ibis (Plegadis chihi) (imm YM, R) Piute Ponds, Edwards AFB © 2011 Callyn Yorke
Order CATHARTIFORMES (New World Vultures)
Turkey Vulture (Cathartes aura) (YM, U) Los Angeles County, CA © 2009 Callyn Yorke
Order ACCIPITRIFORMES (Osprey, Hawks, Eagles, Kites)
Osprey (Pandion haliaetus) (a; YM,R) San Diego County, CA © 2009 Callyn Yorke
Northern Harrier (Circus cyaneus) ( m,YM, U) Kern County , CA © 2011 Callyn Yorke
Cooper's Hawk (Accipiter cooperii) (imm, Y, R)
San Diego County, CA © 2010 Callyn Yorke
Sharp-shinned Hawk (Accipter striatus ) (imm; YM, R)
Western Antelope Valley, Sept. 10, 2010 © 2010 Callyn Yorke
Red-shouldered Hawk (Buteo lineatus) (a; Y,R) Los Angeles County, CA © 2011 Callyn Yorke
Red-tailed Hawk (Buteo jamaicensis) (left imm- light morph; right adult - dark morph YM, FC) Los Angeles & Kern Co. CA 
© 2009 Callyn Yorke September 11, 2011 Galileo Hill, Kern County, CA
Ferruginous Hawk (Buteo regalis) (a; M, U) West Lancaster Rd (L); 140th St. W, n of HWY 138 (R), LACO, October 30, 2011
© 2011 Callyn Yorke
Golden Eagle ( Aquila chrysaetos ) (a; YM,R) 60th Street West, Antelope Valley, CA
© 2011 Callyn Yorke
ORDER FALCONIFORMES (Kestrels and Falcons)
American Kestrel (Falco sparverius) (m, Y,U) Riverside County, CA
© 2009 Callyn Yorke
Merlin (Falco columbarius) (a,m; M,R) 140th Street West, n of HWY 138, LACO, Oct. 24, 2011
© 2011 Callyn Yorke
Peregrine Falcon (Falco peregrinus) (a; YM,R) July 27, 2011
Edwards AFB, Los Angeles County, CA © 2011 Callyn Yorke
Order Gruiformes (Rails and Cranes)
American Coot (Fulica americana) (YM, A) in Apollo Park, February 1, 2010. © 2010 Callyn Yorke
Order CHARADRIIFORMES (Sandpipers, Plovers, Gulls and Terns)
Black-necked Stilt (Himantopus mexicanus) (m; YM, U) Left: Edwards AFB, May 2010; Right: Apollo Park 16 Sept. 2012
© 2010 Callyn Yorke © 2012 Callyn Yorke
American Avocet (Recurvirostra americana) (m,f; YM, U) Lancaster Wastewater Treatment Facility
© 2010 Callyn Yorke
Greater Yellowlegs (Tringa melanoleuca) (a; M,R)
July 29, 2011 Piute Ponds, Edwards AFB © 2011 Callyn Yorke
Whimbrel (Numenius phaeopus) (a; M;R) Apollo Park April 15, 2015 
© 2015 Callyn Yorke
Least Sandpiper (Calidris minutilla) (a; M,U) at the Lancaster Sewage Ponds, CA March 22, 2010 
© 2010 Callyn Yorke
Western Sandpiper (Calidris mauri) (M, U) Apollo Park, 19 April, 2012
© 2012 Callyn Yorke
Spotted Sandpiper (Actitis macularia) ( a;YM, U) San Diego and Lake Palmdale, CA
basic plumage ( fall and winter) © 2010 Callyn Yorke alternate plumage (spring and summer)
Wilson's Phalarope (Phalaropus tricolor) (M, U) Ave. D Lancaster Waste Water Treatment Facility
© 2010 Callyn Yorke
Red-necked Phalarope (Phalaropus lobatus) (a; M, U) Ave. D Lancaster Wastewater Treatment Facility
© 2010 Callyn Yorke
Killdeer (Charadrius vociferus) (a; Y,C) Western Antelope Valley, CA 
© 2011 Callyn Yorke
Mew Gull (Larus canus) (a, M, R) San Pedro, Los Angeles County, CA © 2010 Callyn Yorke
Ring-billed Gull ( Larus delawarensis) (imm, a; YM, C) Apollo Park, February 1, 2010 © 2010 Callyn Yorke
California Gull (Larus californicus) (imm (left) first cycle (right) second cycle; YM, FC) in Apollo Park © 2010 Callyn Yorke
Herring Gull (Larus argentatus) (a, M,R) Los Angeles County, CA © 2009 Callyn Yorke
Bonaparte's Gull (Chroicocephalus philadelphia) (a; M,U ) Malibu State Beach; Lancaster Wastewater Treatment Facility
Alternate (Breeding) Plumage © 2010 Callyn Yorke Basic (Non-breeding) Plumage © 2010 Callyn Yorke
Sabine's Gull (Xema sabini) (a; M,R) Lake Palmdale
Alternate (breeding) Plumage © 2010 Callyn Yorke
Caspian Tern (Hydroprogne caspia) (a; YM,R) Santa Barbara County, CA © 2010 Callyn Yorke
Forster's Tern ( Sterna forsteri ) (a; imm; YM,U) Lake Palmdale, LACO, CA August 31, 2011 
© 2011 Callyn Yorke
Common Tern (Sterna hirundo) (a; M, R) Apollo Park, 23 Sep. 2012
© 2012 Callyn Yorke
Black Tern (Chlidonias niger) (a; M, R) Lancaster Sewage Ponds
© 2010 Callyn Yorke
Order COLUMBIFORMES (Pigeons and Doves)
Mourning Dove (Zenaida macroura) (a; Y,FC) Santa Barbara County, CA © 2010 Callyn Yorke 
Eurasian Collared Dove (Streptopelia decaocto) (a; Y,FC) Apollo Park, CA 
© 2009 Callyn Yorke
Feral Rock Pigeon (Columba livia) a; Y,FC Los Angeles County, CA
© 2010 Callyn Yorke
Greater Roadrunner (Geococcyx californianus) (a; Y,R) Los Angeles County, CA © 2010 Callyn Yorke
Great Horned Owl (Bubo virginianus) (a; Y, U) Apollo Park June 7, 2011
© 2011 Callyn Yorke
Long-eared Owl (Asio otus) (a; Y, U) northwest Apollo Park May 27, 2011
© 2011 Callyn Yorke
Burrowing Owl (Athene cunicularia) ( ad; Y, U) 60th Street West, north of Avenue G October 13, 2011
© 2011 Callyn Yorke
Barn Owl (Tyto alba) (ad; Y, U) Apollo Park April 27, 2012
© 2012 Callyn Yorke
Order CAPRIMULGIFORMES (Nighthawks)
Lesser Nighthawk (Chordeiles acutipennis) (a; M, C)
© Leslie Hawes
Order APODIFORMES (Swifts and Hummingbirds)
Vaux's Swift (Chaetura vauxi) (a; M, U) Lake Palmdale, CA May 9, 2011
© 2011 Callyn Yorke
Anna's Hummingbird (Calypte anna) (m, f, f nesting; YM, FC) San Diego County, CA © 2009 Callyn Yorke
Antelope Valley, CA May 1, 2010 © 2010 Callyn Yorke
Black-chinned Hummingbird (Archochilus alexandri) (m,f; M, U) Lake Palmdale, CA April 20 , 2012 (m); Aug 27, 2010 (f)
© 2012 Callyn Yorke
Order CORACIIFORMES (Kingfishers)
Belted Kingfisher (Megaceryle alcyon) (a,f; YM, R) Lake Palmdale, CA
© 2010 Callyn Yorke
Order PICIFORMES (Woodpeckers)
Red-breasted Sapsucker (Sphyrapicus ruber) (a; YM,R) Red-naped Sapsucker (Sphyrapicus nuchalis) (m; YM,R) Edwards AFB, 2009
Holiday Lake, west Antelope Valley, March 5, 2011 © 2011 Callyn Yorke Edwards AFB. Kern County, CA, 2009
Acorn Woodpecker (Melanerpes formicivorous) (a, m; Y, R) Santa Barbara County
© 2010 Callyn Yorke
Northern Red-shafted Flicker (Colaptes auratus) ( f; YM, U) Nov. 5, 2011, Lake Palmdale, CA
© 2011 Callyn Yorke
Ladder-backed Woodpecker ( Picoides scalaris ) (m; Y,R)
Kern County, CA © 2009 Callyn Yorke
Downy Woodpecker (Picoides pubescens) (a,m; YM,R) Hairy Woodpecker (Picoides villosus) (a,m; YM,R)
Elizabeth Lake, LACO February 21, 2011 © 2011 Callyn Yorke Inyo County, CA 17 February, 2012 © 2012 Callyn Yorke
Order PASSERIFORMES (Perching and Song Birds)
Black Phoebe (Sayornis nigricans) (a; Y,C) Riverside County, CA © 2009 Callyn Yorke
Say's Phoebe (Sayornis saya) (a; YM,U) Los Angeles County, CA © 2009 Callyn Yorke
Vermilion Flycatcher (Pyrocephalus rubinus) (m,f; YM,R))Eastern Antelope Valley, LACO, CA; La Quinta, Riverside County, CA
© 2012 Callyn Yorke
Pacific Slope Flycatcher (Empidonax difficilis) (a; YM, U) Apollo Park June 7, 2011
© 2011 Callyn Yorke
Willow Flycatcher (Empidonax trailii) (a;YM, U) Apollo Park,Sept. 20, 2012 Gray Flycatcher (Empidonax wrighti) (M, U) Lake Palmdale, CA
© 2012 Callyn Yorke © 2011 Callyn Yorke
Hammond's Flycatcher ( Empidonax hammondi) (M, U) Lake Palmdale, CA
© 2010 Callyn Yorke
Western Wood Pewee (Contopus sordidulus) (M, U) Lake Palmdale, CA
© 2010 Callyn Yorke
Olive-sided Flycatcher (Contopus cooperi ) (a; M, U) Apollo Park June 7, 2011
© 2011 Callyn Yorke
Western Kingbird (Tyrannus verticalis) (M, FC) Apollo Park, CA June 1, 2010
© 2010 Callyn Yorke
Cassin's Kingbird (Tyrannus vociferans) (a; YM, R) San Diego County, CA
© 2011 Callyn Yorke
Ash-throated Flycatcher (Myiarchis cinerascens) (M, U) Lake Palmdale, CA June 2, 2010
© 2010 Callyn Yorke
Loggerhead Shrike (Lanius ludovicianus) (a; Y,U) Western Antelope Valley, CA
© 2010 Callyn Yorke
Warbling Vireo (Vireo gilvus)(a; M,U)
Galileo Hill Park, Kern County, CA September 4, 2011 © 2011 Callyn Yorke
Cassin's Vireo (Vireo cassinii) (M, U) Apollo Park April 22, 2011
© 2011 Callyn Yorke
Northern Mockingbird (Mimus polyglottos) (imm; Y,U) Los Angeles County
© 2010 Callyn Yorke
Sage Thrasher (Oreoscoptes montanus) (a; M,R) Avenue A, 120th Street West KERN-LACO Line, CA March 10, 2012
© 2012 Callyn Yorke
European Starling (Sturnus vulgaris) (a; Y, C) Santa Barbara County, CA © 2010 Callyn Yorke 
Common Raven (Corvus corax ) (a, Y,C) Los Angeles County, CA © 2010 Callyn Yorke
© 2010 Callyn Yorke
American Crow (Corvus brachyrhynchos) (Y,R) Lake Hemet, CA © 2010 Callyn Yorke
Western Scrub-jay (Aphelocoma californica) (Y,R) Green Valley, Los Angeles County, CA © 2010 Callyn Yorke
Horned Lark (Eremophila alpestris) (a; Y C) Los Angeles County, CA © 2010 Callyn Yorke
Violet-green Swallow ( Tachycineta thalassina) ( imm; (YM, U) Lake Palmdale, Los Angeles County, CA 21 March, 2011
© 2011 Callyn Yorke
Tree Swallow (Tachycineta bicolor) (a; YM,FC) Lake Palmdale, CA
© 2010 Callyn Yorke
Cliff Swallow (Petrochelidon pyrrhonota) (a; M, U) Apollo Park, CA March 10, 2010 © 2010 Callyn Yorke 
Northern Rough-winged Swallow (Stelgidopteryx serripennis) (YM,R) Los Angeles County
(a; M, FC) © 2010 Callyn Yorke
Barn Swallow (Hirundo rustica) (a,YM,FC) Apollo Park, March 10, 2010 
© 2010 Callyn Yorke
Bank Swallow (Riparia riparia) (a; M, R) Lancaster Sewage Ponds.
© 2010 Callyn Yorke
Mountain Chickadee (Poecile gambeli) (a; YM,U) Pearblossom Park, Sept. 5, 2011.
© 2011 Callyn Yorke
White-breasted Nuthatch ( Sitta carolinensis) (a; YM,U) Los Angeles County, CA 
© 2010 Callyn Yorke
Red-breasted Nuthatch (Sitta canadensis) (a; YM,R) Apollo Park, 12 Oct. 2012
© 2012 Callyn Yorke
Pygmy Nuthatch ( Sitta pygmaea ) (a; YM,R) Los Angeles County, CA © 2009 Callyn Yorke
Bewick's Wren (Thryomanes bewickii ) (a; Y,FC) Los Angeles County, CA © 2010 Callyn Yorke 
Marsh Wren (Cistothorus palustris) (a;YM,R) Piute Ponds, Edwards AFB
© 2009 Callyn Yorke
House Wren (Troglodytes aedon) (a; Y,R)
Lake Palmdale, LACO, CA May 24, 2010 © 2010 Callyn Yorke
Rock Wren (Salpinctes obsoletus) (YM,R)
Palos Verdes Peninsula, LACO, CA May 29, 2010 © 2010 Callyn Yorke
Blue-gray Gnatcatcher (Polioptila caerulea) (a; YM, U) Lake Palmdale, CA
© 2010 Callyn Yorke
Ruby-crowned Kinglet (Regulus calendula) (a;YM,FC) Kern County, CA © 2009 Callyn Yorke
American Robin (Turdus migratorius) (a; YM,U) Elizabeth Lake, Los Angeles County, CA
© 2011 Callyn Yorke
Hermit Thrush (Catharus guttatus) (a; YM,U) Los Angeles County, CA © 2009 Callyn Yorke
Swainson's Thrush (Catharus ustulatus) (a; YM,U) Kern County, CA May 30, 2011
© 2011 Callyn Yorke
Mountain Bluebird (Sialia currucoides) a,(m; M, R) November 10, 2010
110th Street West, Los Angeles County, CA © 2010 Callyn Yorke February 16, 2012 Lone Pine, Inyo County, CA © 2012 Callyn Yorke
American Pipit (Anthus rubescens) (a, imm; M,U) 140th St. W, LACO Oct. 24, 2011
© 2011 Callyn Yorke
Cedar Waxwing (Bombycilla cedrorum) (a; YM, R) Inyo County, CA February 19, 2012
© 2012 Callyn Yorke
Orange-crowned Warbler (Vermivora celata) (a; YM,U) Kern County, CA
© 2009 Callyn Yorke
MacGillivray's Warbler (Geothlypsis tolmiei) (YM;R) Apollo Park, 23 Sept. 2012
© 2012 Callyn Yorke
Yellow-rumped Audubon's Warbler (Setophaga coronata) (m; YM,C) Apollo Park, February 1, 2010. © 2010 Callyn Yorke
Nashville Warbler (Setophaga ruficapilla) (YM,R) Galileo Hill Park, Kern County, CA September 11, 2011
© 2011 Callyn Yorke
Black-throated Green Warbler (Setophaga virens) (a; M, V)
January 24, 2010 Pasadena, CA © 2010 Callyn Yorke
Townsend's Warbler (Setophaga townsendi) ( m; YM,U ) April 26, 2013 Apollo Park
© 2013 Callyn Yorke
Hermit Warbler (Setophaga occidentalis) m; M, R San Gabriel Mts. LACO CA 1 May 2014
© 2014 Callyn Yorke
Prairie Warbler (Setophaga discolor) a; V; Lake Palmdale, LACO CA 26 Aug 2014
© 2014 Callyn Yorke
Magnolia Warbler (Setophaga magnolia) (f; V) Apollo Park, 14 October, 2012
© 2012 Callyn Yorke
Wilson's Warbler (Wilsonia pusilla) (m; YM, FC)
Lake Palmdale, CA © 2010 Callyn Yorke
Yellow Warbler (Setophaga petechia) ( m; YM, FC) Lake Palmdale, CA
© 2010 Callyn Yorke
Ovenbird (Seiurus aurocapilla) (V) Apollo Park, May 31 2013
© 2013 Callyn Yorke
Bell's Sage Sparrow (Artemisiospiza belli canescens) (a; YM C) Apollo Park, 31 August. 2012
© 2012 Callyn Yorke
Savannah Sparrow (Passerculus sandwichensis) (a; M,FC) Apollo Park, 12 Oct. 2012 
© 2012 Callyn Yorke
Lark Sparrow (Chondestes grammacus) (a; YM,U) Apollo Park, 1 Oct. 2012 © 2012 Callyn Yorke 
Song Sparrow (Melospiza melodia) (a; YM,R) Lake Palmdale, October 28, 2011
© 2011 Callyn Yorke
Lincoln's Sparrow (Melospiza lincolnii) (a; M,U) Apollo Park, 12 october, 2012
© 2012 Callyn Yorke
Vesper Sparrow (Pooecetes gramineus) (a; YM, U)
Holiday Lake , Antelope Valley, CA October 30 , 2011 © 2011 Callyn Yorke Holiday Lake, September 30, 2011
Dark-eyed Junco (Junco hyemalis thurberi ) (a,m; YM,A) Apollo Park, February 1, 2010. © 2010 Callyn Yorke
Slate-colored Junco (Junco hyemalis hyemalis) (a; M,R) Pink-sided Junco (Junco hyemalis mearnsi) (a; M,R)
Apollo Park January 6, 2011 © 2011 Callyn Yorke Apollo Park October 27 , 2011 © 2011 Callyn Yorke
Chipping Sparrow (Spizella passerina) (a; YM,FC) Brewer's Sparrow (Spizella breweri) (YM,U) Apollo Park, 16 Sept. 2012
March 24, 2011 Holiday Lake, LACO, CA © 2011 Callyn Yorke © 2012 Callyn Yorke
White-crowned Sparrow (Zonotrichia leucophrys) (a; YM,C) Santa Barbara County, CA 
© 2010 Callyn Yorke
White-throated Sparrow (Zonotrichia albicollis) (a; M, R) Apollo Park, 10 October, 2012
© 2012 Callyn Yorke
Golden-crowned Sparrow (Zonotrichia atricapilla) ) (a; YM, R) Apollo Park, May 11, 2011
© 2011 Callyn Yorke
Fox Sparrow (Passerella iliaca) (YM, R) Apollo Park, 4 October, 2012
© 2012 Callyn Yorke
Spotted Towhee (Pipilio maculatus) (a; Y,R) Old San Francisquito Canyon Rd. Los Angeles County, CA 13 March, 2011 
© 2011 Callyn Yorke
California Towhee (Pipilo crissalis) (a; Y,R) Lake Palmdale, Los Angeles County, CA 11 March, 2011
© 2011 Callyn Yorke
Green-tailed Towhee (Pipilo chlorurus) (a; Y; M, R) AP April 26, 2013
© 2013 Callyn Yorke
Red-winged Blackbird (Agelaius phoeniceus) (a,m; Y,C) Apollo Park, February 1, 2010. © 2010 Callyn Yorke
Tricolored Blackbird (Agelaius tricolor) (m; a, imm; YM,R) Female Red-winged Blackbird (L) and Tricolored Blackbird (R)
Holiday Lake, LACO, CA May 6, 2011 © 2011 Callyn Yorke Holiday Lake, LACO, October 26, 2011 © 2011 Callyn Yorke
Brewer's Blackbird (Euphagus cyanocephalus) (m; YC) LA County, CA © 2010 Callyn Yorke 
Yellow-headed Blackbird (Xanthocephalus xanthocephalus) (m; M,U) Lake Palmdale, November 5, 2011
(f; M, U) Apollo Park, Sept. 10, 2011 © 2011 Callyn Yorke © 2011 Callyn Yorke
Great-tailed Grackle (Quiscalus mexicanus) (a,m; Y,C) Apollo Park. © 2009 Callyn Yorke
Western Meadowlark (Sturnella neglecta) (a; Y, FC) Oct. 26, 2011 (Left); October 30, 2011 (R) 140th St. West, Antelope Valley, CA
© 2011 Callyn Yorke
Brown-headed Cowbird (Molothrus ater) (m; Y,U) Lake Palmdale, CA;
© 2010 Callyn Yorke
Brown-headed Cowbird ( immature) Galileo Hill Park, September 11, 2011
© 2011 Callyn Yorke
Bullock's Oriole (Icterus bullockii) (f,m; a; M,U) © 2010 Callyn Yorke
Pearblossom Park, LACO, CA September 5, 2011 © 2011 Callyn Yorke Green Valley, LACO, CA April 18, 2010
House Finch (Carpodacus mexicanus) (m; f; Y, C) Elizabeth Lake, Los Angeles County, CA
© 2011 Callyn Yorke
Purple Finch (Carpodacus purpureus) ( m; YM, U) Valyermo, Los Angeles County
© 2010 Callyn Yorke
Red Crossbill (Loxia curvirostra) (a,m; Y;M, R) Apollo Park April 21, 2013
© 2013 Callyn Yorke
Pine Siskin (Carduelis pinus) (a; YM, U) Lake Hughes, CA March 5, 2011
© 2011 Callyn Yorke
Western Tanager (Piranga ludoviciana) (m, M, U) Lake Palmdale, CA June 2, 2010
© 2010 Callyn Yorke
Black-headed Grosbeak (Pheuticus melanocephalus ) (m; M,U) Piute Ponds, Edwards AFB, Jul 31, 2011; Galileo Hill Park, Kern County, CA September 11, 2011 (f).
© 2011 Callyn Yorke
Lesser Goldfinch (Spinus psaltria) (a;YM,U) Los Angeles County, CA © 2009 Callyn Yorke
Lawrence's Goldfinch (Spinus lawrencei) m; Y, U
Lake Palmdale, CA © 2010 Callyn Yorke
Lazuli Bunting (Passerina amoena) (m,f; M; U) Sept 4, 2011. Lazuli Bunting (females) Kern CO., Sept. 11, 2011.
© 2011 Callyn Yorke
Indigo Bunting (Passerina cyanea) (m; Y,M; R) Apollo Park, May 7, 2012
© 2012 Callyn Yorke
House Sparrow (Passer domesticus) (a,m; Y, A) Apollo Park, February 1, 2010. © 2010 Callyn Yorke