GRASSLAND BIRDS

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Grassland birds have shown steeper, more consistent and more geographically widespread decline in population than any other guild of North American species (USGS, 1999; Dale, 1998). Recently, breeding bird surveys in the United States and Canada have shown alarming declines in grassland birds (Jones et al., 1998; Dale, 1998). For example, in the Northeastern United States Bobolinks have declined by 38 percent and Grasshopper Sparrows by 69 percent in the past 25 years. Preliminary results from breeding bird surveys in Canada have shown significant declines of several species.

Estimates of the numbers of breeding pairs of grassland/shrubland birds found within the Carden Plain IBA, summer 2000.

* Priority species for Victoria County (Couturier 1999).
Nationally declining population (BSC, 1999).

Species
Click on underlined names for pictures and information.
Estimated Number
of Breeding Pairs 1
Preferred Habitat(s)
Northern Harrier * 20 Grassland
Red-tailed Hawk 8 Treed grassland
American Kestrel * 20 Grassland, shrubland
Upland Sandpiper * 200 Grassland
Black-billed Cuckoo *
(Coccyzus erythropthalmus)
30 Treed grassland, shrubland
Short-eared Owl * 1-2 Grassland, limestone pavement
Common Nighthawk * 200 Limestone pavement
Whip-poor-will * 100 Limestone pavement, shrubland
Northern Flicker 300 Treed grassland, shrubland
Eastern Kingbird * 1000 Grassland, shrubland
Loggerhead Shrike * 9 Shrubland
Horned Lark * 100 Grassland, limestone pavement
Eastern Bluebird * 500 Grassland
Gray Catbird 400 Shrubland
Northern Mockingbird * 3 Grassland
Brown Thrasher * 400 Treed grassland, shrubland
Golden-winged Warbler * 100 Shrubland
Chestnut-sided Warbler * 400 Shrubland
Eastern Towhee * 500 Shrubland
Clay-colored Sparrow * 30 Treed grassland, shrubland
Field Sparrow * 400 Shrubland
Vesper Sparrow * 350 Grassland, shrubland
Savannah Sparrow * 2000 Grassland
Grasshopper Sparrow * 200 Grassland
Song Sparrow * 1200 Shrubland, grassland
Indigo Bunting * 80 Shrubland
Bobolink * 1000 Grassland
Eastern Meadowlark * 1500 Grassland
American Goldfinch * 800 Grassland, shrubland

RARE SPECIES
Click on underlined names for pictures and information.
   
Black Tern 20-40 Wetland Vulnerable
Henslow's Sparrow Former Grassland endangered
Least Brittern 5-10 Wetlands vulnerable
Red-headed Woodpecker 3 Forest vulnerable
Red-shouldered Hawk 3-5 Vulnerable
Short-eared Owl 1 Grassland vulnerable
Yellow Rail 3 Wetland vulnerable
Osprey 6 Wetlands & Lakes

Estimates are approximate.





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