Below are the dates of the first report for each species seen in Calgary in 2010.
Species marked ** are reportable.
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December 10 **Great Gray Owl
November 15 **Slaty-backed Gull
October 29 **Northern Hawk Owl
October 23 **Pacific Loon
October 23 **Anna’s Hummingbird
October 19 **Northern Pygmy-Owl
October 11 **Short-eared Owl
October 9 **Greater White-fronted Goose
September 21 **Golden-crowned Sparrow
September 18 **Long-eared Owl
September 13 **Chestnut-sided Warbler
September 12 **American Bittern
September 11 **Connecticut Warbler
September 9 **Mew Gull
September 7 **Palm Warbler
August 31 **Great Crested Flycatcher
August 30 **White-faced Ibis
August 29 **Buff-breasted Sandpiper
August 27 **Blackburnian Warbler, **Hooded Warbler
August 21 **Hammond’s Flycatcher
August 20 **Yellow-bellied Flycatcher
August 19 **Cape May Warbler, **Bay-breasted Warbler
August 16 **American Golden-Plover
August 15 **Upland Sandpiper, **Pacific Golden-Plover
August 14 **Philadelphia Vireo
August 12 **Canada Warbler
August 11 **Dusky Flycatcher, **”Western Flycatcher”
July 31 **Sanderling
July 28 **Willow Flycatcher
July 10 **Stilt Sandpiper, **Red-necked Phalarope
June 10 **Summer Tanager
June 7 **Townsend’s Warbler, **Lazuli Bunting
June 6 **Alder Flycatcher, **Le Conte’s Sparrow, **Nelson’s Sparrow
June 5 **Northern Cardinal, **Olive-sided Flycatcher
June 4 **Baird’s Sparrow
June 3 Wilson’s Warbler, Black-and-white Warbler, Ruby-throated Hummingbird
June 2 Ovenbird
May 31 **Gray-cheeked Thrush, **Mourning Warbler
May 30 **Nashville Warbler, **Blue-headed Vireo, **Fox Sparrow
May 29 Red-eyed Vireo, **Black-headed Grosbeak
May 27 **Magnolia Warbler
May 25 **White-rumped Sandpiper, Black-crowned Night-Heron, American Redstart
May 24 **Common Nighthawk, Veery, **Common Tern, **Arctic Tern, ** Caspian Tern, **Virginia Rail,
Western Kingbird
May 23 **MacGillivray’s Warbler, **Forster’s Tern, Tennessee Warbler
May 22 Sora, Gray Catbird
May 21 **Marsh Wren, Calliope Hummingbird, Least Flycatcher, Black Tern
May 20 **Cassin’s Vireo, Pectoral Sandpiper
May 19 **Northern Mockingbird
May 18 Baltimore Oriole, Common Yellowthroat
May 16 Rufous Hummingbird, Baird’s Sandpiper
May 15 **Brown Thrasher, **Sabine’s Gull, **Purple Martin, Northern Waterthrush, American Goldfinch,
Warbling Vireo, Blackpoll Warbler
May 14 Rose-breasted Grosbeak, Yellow Warbler, **Black-throated Green Warbler, Black-bellied Plover,
Spotted Towhee, Clay-colored Sparrow, Eastern Kingbird, Western Wood-Peewee
May 13 Chipping Sparrow
May 11 **Broad-winged Hawk, Swainson’s Thrush
May 10 Western Tanager
May 9 Spotted Sandpiper, **Short-billed Dowitcher
May 8 **Western Sandpiper, Wilson’s Phalarope
May 7 **Surf Scoter, American White Pelican, Western Grebe, Bonaparte’s Gull
May 6 Cliff Swallow
May 4 **Swamp Sparrow
May 3 **Winter Wren
May 2 **Say’s Phoebe, Semipalmated Plover, House Wren, Vesper Sparrow
May 1 **Turkey Vulture, Brown-headed Cowbird, Red-naped Sapsucker, Willet, Long-billed Dowitcher,
Orange-crowned warbler
April 30 **Hudsonian Godwit, Marbled Godwit, **White-winged Scoter, **Hermit Thrush, Least Sandpiper
April 26 **Iceland Gull
April 25 Barn Swallow, Bank Swallow
April 24 Yellow-bellied Sapsucker, Savannah Sparrow, **Glaucous-winged Gull, **Evening Grosbeak,
Semipalmated Sandpiper
April 23 Northern Rough-winged Swallow, **Purple Finch
April 21 **Sandhill Crane
April 20 Solitary Sandpiper, Double-crested Cormorant
April 19 Ruddy Duck, Eastern Phoebe, Lincoln’s Sparrow
April 18 Red-breasted Merganser, American Pipit, Osprey, Cooper’s Hawk, Blue-winged Teal,
Ruby-crowned Kinglet, Brewer’s Blackbird, Red-necked Grebe, Pied-billed Grebe
April 17 Black-necked Stilt, Yellow-headed Blackbird, Horned Grebe, Eared Grebe, Northern Harrier,
American Avocet, Tree Swallow, **Violet-green Swallow
April 16 **Long-billed Curlew, Cinnamon Teal, **Whimbrel, **Thayer’s Gull, **Lesser Black-backed Gull
April 14 Lesser Yellowlegs
April 11 Greater Yellowlegs, Wilson’s Snipe
April 7 Peregrine Falcon
April 6 Red-winged Blackbird
April 3 Great Blue Heron
April 2 **Ferruginous Hawk, Swainson’s Hawk, Yellow-rumped Warbler
April 1 **Greater Scaup
March 31 **Mute Swan
March 30 Franklin’s Gull, Bonaparte’s Gull
March 28 **Glaucous Gull, Canvasback, Western Meadowlark
March 25 Mountain Bluebird, **Eurasian Wigeon, **Lapland Longspur, Gadwall
March 23 Common Loon
March 20 Ring-necked Duck
March 19 Tundra Swan
March 16 **Steller’s Jay
March 13 Horned Lark
March 7 Herring Gull
March 6 White-crowned Sparrow
March 4 Ring-billed Gull
March 3 **Cackling Goose
February 28 California Gull, Song Sparrow
February 26 **Gray Jay
February 25 American Kestrel, Cooper’s Hawk
February 24 Common Grackle
February 23 **Northern Saw-whet Owl
February 22 **Eurasian Collared-Dove
February 20 **Townsend’s Solitaire
February 13 Cedar Waxwing
February 11 Northern Shoveler, **Rusty Blackbird
February 6 Snow Bunting
February 2 **Greater Scaup
January 24 Pileated Woodpecker
January 19 **American Dipper
January 16 Lesser Scaup
January 15 Killdeer, Belted Kingfisher
January 14 **Mountain Chickadee
January 12 Golden-crowned Kinglet
January 10 Northern Pintail, Hooded Merganser, **Red Crossbill
January 9 Redhead, Ruffed Grouse, **Prairie Falcon, American Coot, American Robin
January 6 **Golden Eagle
January 5 **Northern Goshawk
January 4 Pine Grosbeak
January 3 Trumpeter Swan, Wood Duck, **Harlequin Duck, Ring-necked Pheasant, Sharp-shinned Hawk,
**American Three-toed Woodpecker, Brown Creeper, Rough-legged Hawk
January 2 Gray Partridge, Merlin, **Gyrfalcon, **Varied Thrush, Dark-eyed Junco, **Snowy Owl
January 1 **Snow Goose, Canada Goose, American Wigeon, Mallard, Green-winged Teal,
**Long-tailed Duck, Bufflehead, Common Goldeneye, **Barrow’s Goldeneye,
Common Merganser, Bald Eagle, Red-tailed Hawk, Rock Pigeon, Mourning Dove,
Great Horned Owl, Downy Woodpecker, Hairy Woodpecker, Northern Flicker,
Northern Shrike, Blue Jay, Black-billed Magpie, American Crow, Common Raven,
Black-capped Chickadee, Boreal Chickadee, Red-breasted Nuthatch,
White-breasted Nuthatch, European Starling, Bohemian Waxwing,
American Tree Sparrow, White-throated Sparrow, **Harris’s Sparrow, House Finch,
**White-winged Crossbill, Common Redpoll, Pine Siskin, House Sparrow
_
Bob Lefebvre
