207 species

compiled by Jim Wisnia

printed 10/97

. . . other viewing opportunities at the Squamish Estuary . . . more information on the Squamish Estuary . . . list of available bird checklists

May 2002 - The taxonomic order, common names and four-letter codes included in this web version of the Squamish Estuary Bird Checklist published in 1997 have been updated using the 7th edition of the American Ornithologists' Union (AOU) Check-List of North American Birds (AOU 1998) and its supplement (AOU 2000).

The following is a list of the bird species that may be observed in the Squamish Estuary. The status of each species is indicated by an abundance level in each of four seasons. The standard four letter code is shown for each species. The checklist area includes upper Howe Sound north of a line from Britannia Beach to Woodfibre, and all of the Squamish River floodplain south of the Mamquam River. Explanation of Symbols Seasonal Occurrence Sp = Spring (March - May) S = Summer (June - August) F = Fall (September - November) W = Winter (December - February) Relative Abundance a = abundant [100 or more per day] c = common [25 to 100 per day] f = fairly common [5 to 25 per day] u = uncommon [1 to 5 per day, with at least 10 records per year] r = rare [1 to 10 records per year, but regular] ca = casual [2 to 10 records in checklist area during the specified season] ac = accidental [only 1 record in checklist area during the specified season] i = irregular/erratic [numbers fluctuate yearly from many to absent Other Symbols * = breeding documented or highly suspected in area + = need more information to accurately assess status [I] = introduced species

Code	*	Species	Spring	Summer	Fall	Winter
RTLO		Red-throated Loon	r	ac	r	u
PALO		Pacific Loon			ac	r
COLO		Common Loon	u	r	u	u
YBLO		Yellow-billed Loon	ca	ca		ca
PBGR		Pied-billed Grebe	ca	ca	r	ca
HOGR		Horned Grebe	f		f	f
RNGR		Red-necked Grebe	r	ca	r	r
EAGR		Eared Grebe +				ac
WEGR		Western Grebe	f		u	u
AWPE		American White Pelican		ac
DCCO		Double-crested Cormorant	c	c	c	c
BRCO		Brandt's Cormorant		ca		ca
PECO		Pelagic Cormorant	u	r	u	u
GBHE	*	Great Blue Heron	f	f	f	f
GREG		Great Egret			ac
GRHE		Green Heron +		ac
TUVU		Turkey Vulture	r	r	ac	ca
GWFG		Greater White-fronted Goose	ca	ca	ca	ac
SNGO		Snow Goose +	ac		ac
CAGO	*	Canada Goose	c	a	c	a
TRUS		Trumpeter Swan	u	ac	f	f
WODU	*	Wood Duck	r	u	ac	ca
GADW		Gadwall	ca	ca	r	u
EUWI		Eurasian Wigeon +			ac	ac
AMWI		American Wigeon	f	u	f	u
MALL	*	Mallard	a	a	a	a
BTWE		Blue-winged Teal	r	ac
CITE		Cinnamon Teal	r	ac
NOSL		Northern Shoveler	r	ac	r
NOPI		Northern Pintail	f	ca	u	u
GWTE	*	Green-winged Teal	f	u	c	u
CANV		Canvasback	ca		ca	ca
REDH		Redhead +	ac
RNDU		Ring-necked Duck	r	ca
GRSC		Greater Scaup	f		ac	f
LESC		Lesser Scaup	c		ca	u
HADU		Harlequin Duck +	r
SUSC		Surf Scoter	u		ac	u
WWSC		White-winged Scoter +	ca
BLSC		Black Scoter +	ca	ac
LTDU		Long-tailed Duck +	ca			ca
BUFF		Bufflehead	a		c	a
COGO		Common Goldeneye	c	ca	f	c
BAGO		Barrow's Goldeneye	c		r	c
HOME	*	Hooded Merganser	r	r	u	u
COME	*	Common Merganser	c	c	c	f
RBME		Red-breasted Merganser	r	ca	ra	u
RUDU		Ruddy Duck +	ac			ca
OSPR	*	Osprey	ca	ca		ac
BAEA	*	Bald Eagle	f	u	f	a
NOHA		Northern Harrier	r	ca	r	ca
SSHA		Sharp-shinned Hawk		ca	r	r
COHA		Cooper's Hawk		ca	ca	ca
NOGO		Northern Goshawk		ac	ac	ca
RTHA	*	Red-tailed Hawk	ca	r	r	r
RLHA		Rough-legged Hawk +				ac
GOEA		Golden Eagle +	ca
AMKE		American Kestrel	ca	ac	ac
MERL		Merlin		ca	ca	r
PEFA	*	Peregrine Falcon	ca	r	ca	ca
GYRF		Gyrfalcon +			ac
RNPH		Ring-necked Pheasant + [I]			ac
RUGR	*	Ruffed Grouse	ca	r	ca	r
BLGR	*	Blue Grouse +			ca
VIRA		Virginia Rail +	ac	ca	ac	ca
SORA		Sora +	ac
AMCO		American Coot			ca	ac
SACR		Sandhill Crane	ca
BBPL		Black-bellied Plover +			ac	ac
KILL	*	Killdeer	r	ca	ca	r
BLOY		Black Oystercatcher +	ac
GRYE		Greater Yellowlegs	ca	ca	ca
LEYE		Lesser Yellowlegs		ca	ac
SOSA		Solitary Sandpiper +			ac
SPSA	*	Spotted Sandpiper	r	f		ca
SAND		Sanderling +				ac
WESA		Western Sandpiper	ca	r	r	ca
LESA		Least Sandpiper	ca	r
BASA		Baird's Sandpiper +		ca
PESA		Pectoral Sandpiper +			ca
DUNL		Dunlin +				ac
STSA		Stilt Sandpiper +		ac
LBDO		Long-billed Dowitcher		ca	r
COSN		Common Snipe	ca		r	r
PAJA		Parasitic Jaeger +			ac
BOGU		Bonaparte's Gull		ca	ca	ca
MEGU		Mew Gull	f	r	c	a
RBGU		Ring-billed Gull	ca	ca	ca	r
CAGU		California Gull	ac	ca	ac	ca
HEGU		Herring Gull		ca
THGU		Thayer's Gull	ca		r	c
WEGU		Western Gull +				ca
GWGU	*	Glaucous-winged Gull	a	a	a	a
GLGU		Glaucous Gull			ac	ca
CATE		Caspian Tern	r	r	ca
COMU		Common Murre +	r	ac		r
PIGU		Pigeon Guillemot +				ca
MAMU		Marbled Murrelet +	ca	ac
RODO	*	Rock Dove [I]	c	c	c	c
BTPI	*	Band-tailed Pigeon	r	f	ca	ca
MODO		Mourning Dove +	ac
WSOW		Western Screech-Owl +				ca
GHOW		Great Horned Owl +			ca	ca
SNOW		Snowy Owl +				ac
NPOW		Northern Pygmy-Owl +			ac	r
BDOW		Barred Owl +	ac		ac	ac
SEOW		Short-eared Owl +	ac		ac
NSWO		Northern Saw-Whet Owl +				ca
CONI		Common Nighthawk	r	r	r
BLSW		Black Swift +	i	r
VASW		Vaux's Swift +	ca	i
WTSW		White-throated Swift +	ac
ANHU		Anna's Hummingbird +				ac
RUHU	*	Rufous Hummingbird	c	f
BEKI	*	Belted Kingfisher	u	u	u	u
RBSA	*	Red-breasted Sapsucker	ca	ca	ca	ca
DOWO	*	Downy Woodpecker	r	r	r	u
HAWO	*	Hairy Woodpecker	r	r	r	r
NOFL	*	Northern Flicker	f	f	f	u
PIWO	*	Pileated Woodpecker	r	ca	r	ca
OSFL		Olive-sided Flycatcher +		ac
WWPE		Western Wood-Pewee +		ca
WIFL	*	Willow Flycatcher	r	u
HAFL		Hammond's Flycatcher		ca
PSFL	*	Pacific-slope Flycatcher	r	u
WEKI		Western Kingbird +		ac
EAKI		Eastern Kingbird		ca	ac
NOSH		Northern Shrike			ca	r
CAVI		Cassin's Vireo	ca	ca	ac
HUVI		Hutton's Vireo	ca	ac	ca
WAVI	*	Warbling Vireo	r	r	ca
REVI	*	Red-eyed Vireo	ca	r
STJA	*	Steller's Jay	u	u	f	u
CLNU		Clark's Nutcracker			ac
NOCR	*	Northwestern Crow	c	c	c	a
CORA	*	Common Raven	u	u	u	u
HOLA		Horned Lark +	ca			ac
PUMA		Purple Martin +		ac
TRSW	*	Tree Swallow	f	f
VGSW	*	Violet-green Swallow	f	f
NRWS	*	Northern Rough-winged Swallow	f	f
BKSW		Bank Swallow +		ca
BASW	*	Barn Swallow	f	c
CLSW	*	Cliff Swallow	ca	r	ac
BCCH	*	Black-capped Chickadee	f	f	c	c
CBCH	*	Chestnut-backed Chickadee	r	u	ca	ca
BUSH	*	Bushtit	u	u	f	u
RBNU	*	Red-breasted Nuthatch	ca	ca	ac	ac
BRCR		Brown Creeper		ca	ca	ac
BEWR		Bewick's Wren +		ac		ca
WIWR	*	Winter Wren	u	u	r	u
MAWR	*	Marsh Wren	ca	ca	ac	ca
AMDI		American Dipper	ac		ca	r
GCKI	*	Golden-crowned Kinglet	u	ca	f	f
RCKI		Ruby-crowned Kinglet	u	ac	ca	r
MOBL		Mountain Bluebird +	ca
TOSO		Townsend's Solitaire +				ac
SWTH	*	Swainson's Thrush	u	c
HETH		Hermit Thrush +	ca			ac
AMRO	*	American Robin	c	c	f	r
VATH	*	Varied Thrush	u	ca	r	u
EUST	*	European Starling [I]	c	c	c	f
AMPI		American Pipit	f	ac	r
BOWA		Bohemian Waxwing +				ca
CEWA	*	Cedar Waxwing	f	f	ca
OCWA	*	Orange-crowned Warbler	u	r	ca
YEWA	*	Yellow Warbler	u	u	ac
YRWA	*	Yellow-rumped Warbler	f	r	c	ac
BTGW	*	Black-throated Gray Warbler	r	r	ca
TOWA		Townsend's Warbler	ca	ca	ca
AMRE	*	American Redstart	ac	ac	ac
MACW	*	MacGillivray's Warbler	ca	r
COYE	*	Common Yellowthroat	f	f	ac
WIWA	*	Wilson's Warbler	ca	r	ac
WETA	*	Western Tanager	ca	r	ca
SPTO	*	Spotted Towhee	f	f	f	f
ATSP		American Tree Sparrow +				ca
CHSP		Chipping Sparrow +	ac
SAVS	*	Savannah Sparrow	f	f	f
FOSP		Fox Sparrow			ca	r
SOSP	*	Song Sparrow	c	c	c	c
LISP		Lincoln's Sparrow +	ac
SWSP		Swamp Sparrow +			ac	ac
WTSP		White-throated Sparrow +				ac
HASP		Harris's Sparrow +				ac
WCSP	*	White-crowned Sparrow	f	f	u	ca
GCSP		Golden-crowned Sparrow	ca	ca	ca	ca
DEJU		Dark-eyed Junco	f	ca	f	c
LALO		Lapland Longspur +	ac
SNBU		Snow Bunting +			ac
BHGR	*	Black-headed Grosbeak	ca	r
RWBL	*	Red-winged Blackbird	c	a	f	r
WEME		Western Meadowlark	r		r
YHBL		Yellow-headed Blackbird +	ca		ac
BRBL	*	Brewer's Blackbird	r	f	f	c
BHCO	*	Brown-headed Cowbird	u	u	ca
BUOR		Bullock's Oriole +	ca	ca
GCRF		Gray-crowned Rosy-Finch +				ac
PIGR		Pine Grosbeak +				ca
PUFI	*	Purple Finch	r	r	r	ca
HOFI	*	House Finch	r	f	r	r
RECR		Red Crossbill	ca	r	f	ca
CORE		Common Redpoll +				ca
PISI	*	Pine Siskin	f	u	a	a
AMGO	*	American Goldfinch	r	u	a	a
EVGR		Evening Grosbeak	r	r	r	r
HOSP		House Sparrow [I]		ca	ac	r