accipiter agriculture alaska alpine climate american robin americas amur falcon animal aplomado falcon balcony barn owl bat falcon binomial nomenclature biogeography biological classification birdlife international bird migration bird of prey building buteo california canada caribbean cave central america cerrado cliff swallow code of federal regulations common kestrel conservation status courtship ddt dna sequence desert dieldrin digital object identifier estuary eurasian sparrowhawk europe falcon falconer falconidae falconiformes falconry florida freeway golden eagle goshawk grackle grasshopper grassland great horned owl hawk hierofalcon highway hunting iucn red list insect international union for conservation of nature least concern lizard messinian miocene mixed-species feeding flock mortality rate mouse national audubon society north america nova scotia numt orange-breasted falcon park peregrine falcon plains pleistocene red-footed falcon red-tailed hawk reproduction rodent san diego zoo shrike south america starling suburb tortonian traffic treble united states vertebrate volume wikimedia commons wing