@article{
 title = {Trends in Autumn Counts of Migratory Raptors in Western North America},
 type = {article},
 year = {2008},
 identifiers = {[object Object]},
 pages = {217-252},
 websites = {http://www.jstor.org/stable/25150357},
 id = {2a87a590-74e5-3d29-be94-620b90482f11},
 created = {2018-06-06T21:18:10.041Z},
 file_attached = {true},
 profile_id = {ab0f59ed-74df-3903-921d-6cd544d31123},
 group_id = {3addd0f7-d578-34d3-be80-24022cc062a1},
 last_modified = {2018-06-06T21:18:42.239Z},
 read = {false},
 starred = {false},
 authored = {false},
 confirmed = {true},
 hidden = {false},
 folder_uuids = {64e27fbd-7d78-4bce-ab55-f9ff046cb930},
 private_publication = {false},
 abstract = {We analyzed counts from 10 watchsites in western North America. Average\ncounts at watchsites ranged from 2,000 to 15,000 migrants each autumn,\nwith as many as 21 species represented. Five species consistently\nmade up more than 80 percent of the annual combinedsite count totals:\nSharp-shinned Hawk (Accipiter striatus), 25–30 percent of the total\nin a given year; Cooper’s Hawk (A. cooperii), 15–22 percent; Red-tailed\nHawk (Buteo jamaicensis), 13–20 percent, Golden Eagle (Aquila chrysaetos),\n9–14 percent, and American Kestrel (Falco sparverius), 8–13 percent.\nWe estimated geometric-mean rates of change in annual count indexes\nfor 16 species. Turkey Vultures (Cathartes aura) increased signifi\ncantly (P ≤ 0.10) at three sites. Swainson’s Hawks (B. swainsoni),\nMerlins (F. columbarius), and Peregrine Falcons (F. peregrinus) increased\nsignifi cantly at some but not all sites. Northern Goshawks (A. gentilis)\nand Northern Harriers (Circus cyaneus) declined signifi cantly at\ntwo sites, and Golden Eagles declined signifi cantly at five sites.\nOspreys (Pandion haliaetus), Sharp-shinned Hawks, Cooper’s Hawks,\nBroad-winged.},
 bibtype = {article},
 author = {Smith, Jeff P and Farmer, Christopher J and Hoffman, Stephen W and Kaltenecker, Gregory S and Woodruff, Kent Z and Sherrington, Peter F},
 journal = {The Auk},
 number = {3}
}

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Average\\ncounts at watchsites ranged from 2,000 to 15,000 migrants each autumn,\\nwith as many as 21 species represented. Five species consistently\\nmade up more than 80 percent of the annual combinedsite count totals:\\nSharp-shinned Hawk (Accipiter striatus), 25–30 percent of the total\\nin a given year; Cooper’s Hawk (A. cooperii), 15–22 percent; Red-tailed\\nHawk (Buteo jamaicensis), 13–20 percent, Golden Eagle (Aquila chrysaetos),\\n9–14 percent, and American Kestrel (Falco sparverius), 8–13 percent.\\nWe estimated geometric-mean rates of change in annual count indexes\\nfor 16 species. Turkey Vultures (Cathartes aura) increased signifi\\ncantly (P ≤ 0.10) at three sites. Swainson’s Hawks (B. swainsoni),\\nMerlins (F. columbarius), and Peregrine Falcons (F. peregrinus) increased\\nsignifi cantly at some but not all sites. Northern Goshawks (A. gentilis)\\nand Northern Harriers (Circus cyaneus) declined signifi cantly at\\ntwo sites, and Golden Eagles declined signifi cantly at five sites.\\nOspreys (Pandion haliaetus), Sharp-shinned Hawks, Cooper’s Hawks,\\nBroad-winged.","bibtype":"article","author":"Smith, Jeff P and Farmer, Christopher J and Hoffman, Stephen W and Kaltenecker, Gregory S and Woodruff, Kent Z and Sherrington, Peter F","journal":"The Auk","number":"3","bibtex":"@article{\n title = {Trends in Autumn Counts of Migratory Raptors in Western North America},\n type = {article},\n year = {2008},\n identifiers = {[object Object]},\n pages = {217-252},\n websites = {http://www.jstor.org/stable/25150357},\n id = {2a87a590-74e5-3d29-be94-620b90482f11},\n created = {2018-06-06T21:18:10.041Z},\n file_attached = {true},\n profile_id = {ab0f59ed-74df-3903-921d-6cd544d31123},\n group_id = {3addd0f7-d578-34d3-be80-24022cc062a1},\n last_modified = {2018-06-06T21:18:42.239Z},\n read = {false},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n folder_uuids = {64e27fbd-7d78-4bce-ab55-f9ff046cb930},\n private_publication = {false},\n abstract = {We analyzed counts from 10 watchsites in western North America. Average\\ncounts at watchsites ranged from 2,000 to 15,000 migrants each autumn,\\nwith as many as 21 species represented. Five species consistently\\nmade up more than 80 percent of the annual combinedsite count totals:\\nSharp-shinned Hawk (Accipiter striatus), 25–30 percent of the total\\nin a given year; Cooper’s Hawk (A. cooperii), 15–22 percent; Red-tailed\\nHawk (Buteo jamaicensis), 13–20 percent, Golden Eagle (Aquila chrysaetos),\\n9–14 percent, and American Kestrel (Falco sparverius), 8–13 percent.\\nWe estimated geometric-mean rates of change in annual count indexes\\nfor 16 species. Turkey Vultures (Cathartes aura) increased signifi\\ncantly (P ≤ 0.10) at three sites. Swainson’s Hawks (B. swainsoni),\\nMerlins (F. columbarius), and Peregrine Falcons (F. peregrinus) increased\\nsignifi cantly at some but not all sites. Northern Goshawks (A. gentilis)\\nand Northern Harriers (Circus cyaneus) declined signifi cantly at\\ntwo sites, and Golden Eagles declined signifi cantly at five sites.\\nOspreys (Pandion haliaetus), Sharp-shinned Hawks, Cooper’s Hawks,\\nBroad-winged.},\n bibtype = {article},\n author = {Smith, Jeff P and Farmer, Christopher J and Hoffman, Stephen W and Kaltenecker, Gregory S and Woodruff, Kent Z and Sherrington, Peter F},\n journal = {The Auk},\n number = {3}\n}","author_short":["Smith, J., P.","Farmer, C., J.","Hoffman, S., W.","Kaltenecker, G., S.","Woodruff, K., Z.","Sherrington, P., F."],"urls":{"Website":"http://www.jstor.org/stable/25150357"},"bibbaseid":"smith-farmer-hoffman-kaltenecker-woodruff-sherrington-trendsinautumncountsofmigratoryraptorsinwesternnorthamerica-2008","role":"author","downloads":0},"bibtype":"article","creationDate":"2020-12-22T22:02:16.617Z","downloads":0,"keywords":[],"search_terms":["trends","autumn","counts","migratory","raptors","western","north","america","smith","farmer","hoffman","kaltenecker","woodruff","sherrington"],"title":"Trends in Autumn Counts of Migratory Raptors in Western North America","year":2008}