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State of the Birds
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North American bird species with the smallest estimated range sizes in 2004
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Range in km2
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1
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Eskimo Curlew
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0?
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2
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Ivory-billed Woodpecker
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0?
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3
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Bachman's Warbler
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0?
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4
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Bermuda Petrel
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1
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5
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Short-tailed Albatross
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9
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6
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Black-footed Albatross
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22
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7
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Cook's Petrel
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50
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8
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Pink-footed Shearwater
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150
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9
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Island Scrub-Jay
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250
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10
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Xantus's Murrelet
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300
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11
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McKay's Bunting
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300
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12
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Thick-billed Parrot
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430
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13
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California Condor
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1,100
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14
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Craveri's Murrelet
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1,700
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15
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Red-legged Kittiwake
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1,740
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16
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Elegant Tern
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2,931
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17
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Black-capped Petrel
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2,940
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18
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Heerman's Gull
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3,451
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19
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Whooping Crane
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4,180
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20
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Florida Scrub-Jay
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6,900
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21
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Red-crowned Parrot
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7,900
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22
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Gunnison Sage-Grouse
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9,700
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23
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Kirtland's Warbler
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11,700
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24
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Emperor Goose
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13,335
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25
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Yellow-footed Gull
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16,000
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26
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Brown-capped Rosy-Finch
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16,000
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27
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Golden-cheeked Warbler
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19,700
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28
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Allen's Hummingbird
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31,000
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29
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Gray Hawk
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35,000
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30
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Western Gull
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36,000
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31
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Bicknell's Thrush
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39,000
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32
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Bristle-thighed Curlew
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45,000
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These population estimates are primarily from the Threatened Birds of the World 2004 summary done by BirdLife International. Many of these range sizes refer to breeding ranges only; many species have much larger ranges in the non-breeding season.
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