Dates of First Report by Date

Below are the dates of the first report for each species seen in Calgary in 2010.

Species marked ** are reportable.


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

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