Most commonly killed species in other continents

USA, Illinois:  House Sparrows 84, Red-headed Woodpeckers 20, Northern Flickers 2 (n = 134) Flint 1926).

USA, Indiana: Indigo Buntings Passerina cyanea, cuckoos, Whip-poor-Wills Caprimulgus vociferus, American Robins Turdus migratorius, Eastern Bluebirds Sialia sialis, Northern Flickers, Red-headed Woodpeckers, Screech Owls, House Sparrows and grackles (n = 225)  (Hadley 1927).

USA, Western States from Ohio to Pacific Coast: House Sparrows 57, Red-headed Woodpeckers 31, Bronzed Grackles Molothrus aeneus 6, Northern Flickers 5, kingbirds 5, American Robins 4, Dickcissels Spiza  americana 4, Sharp-tailed Grouses Tympanuchus phasianellus 3, Western Meadowlarks Sturnella neglecta 3, American Crows Corvus brachyrhynchos 3, Black-billed Magpies Pica pica 3, Ravens 3, Song Sparrows Melospiza melodia 3 (n = 106) (Jones 1927).

USA, Iowa: Red-headed Woodpeckers 9, Screech Owls 2, Northern Flicker 1, cowbird 1, meadowlark 1, Rusty Blackbird Euphagus carolinus 1, House Sparrow 1 (n = 16) (Komarek 1929).

USA, Iowa: Red-headed Woodpeckers 13, Mourning Doves Zenaida macroura 3, kingbirds 2, Bronzed Grackles 2, Northern Flicker 1, Meadowlark 1, cowbird 1, Catbird Dumetella carolinensis 1, Eastern Bluebird 1, Bob-white Colinus virginianus1, House Sparrow 1, Pheasant 1 (n = 28) (Komarek 1929).

USA, California: House Sparrows 28, American Coots Fulica americana 16 (the author believes the coots were killed by collisions with wires at night), Western Meadowlarks 15, Loggerhead Shrikes Lanius ludovicianus10, Brewer Blackbirds Euphagus cyanocephalus 9, Linnets 8, White-crowned Sparrows Zonotrichia leucophrys 8, Killdeers Charadrius vociferus 7, Mourning Doves 4, Northern Mockingbirds Mimus polyglottos 4, Barn Owls 3, Western Kingbirds´ Tyrannus verticalis 3, Brown Towhees Pipilo fuscus 3, Horned Larks Eremophila alpestris 2, Hooded Orioles Icterus cucullatus 2 (n = 136) (Robertson 1930).

USA, Iowa: House Sparrows 93, Red-headed Woodpeckers 5, Northern Flicker 1 (n = 99) (Hendrickson 1933).

USA, Western States: House Sparrows 166, Red-headed Woodpeckers 33, Bronzed Grackles 6, Desert Sparrow Hawks Falco sparvérius 5, Western Bluebirds 5, Desert Horned Larks 4, Short-eared Owls 3, Brown Thrashers 3, Eastern Meadowlarks Sturnella magna 3, Western Meadowlarks 3 (n = 353) (Baumgartner 1934).

USA, Ohio: Yellow-billed Cuckoos Coccyzus americanus 19, Starlings 18, Red-eyed Vireos Vireo olivaceus 18, American Goldfinches Spinus tristis 7, Catbirds 5, American Crows 4, Kentucky Warblers Oporornis formosus 2 (n= 21) (Seibert & Conover 1991).

USA, Pennsylvania: Screech Owls 55, Mourning Doves 24, American Robins 17, Chuck Will’s Widows Caprimulgus carolinensis 14, Red-tailed Hawks Buteo jamaicensis 13, Common Cardinals Cardinalis cardinalis 13, Northern Flickers 12, Great Horned Owls 11, Barred Owls, Strix varia 11, American Goldfinches 10, House Sparrows 10 (n = 460)  (Carnegie Museum, Pittsburgh, Robin K. Panza in litt.).

Australia, W.A.: Silvereyes Zosterops lateralis 15, Western Rosellas 13, Willie Wagtails Rhipidura leucophrys 11, Magpie-larks Grallina cyanoleuca10, Tree Martins Hirundo nigricans 9, Splendid Fairy-wrens Malurus splendens 7, Australian Magpies Gymnorhina tibicen 6, Scarlet Robins Petroica multicolor 5 (n = 127) (Brown et al. 1986).