The densities of American goldfinches and the 'other icterids' group were higher in NWSG areas than in airfield grasslands (goldfinches: t = 3.37, P < 0.001; other icterids: t = 2.64, P = 0.01; Table 5).
American goldfinches, common yellowthroats, song sparrows, and field sparrows were found in much higher abundance or almost exclusively in the NWSG areas.
Likewise, decreases in density of dickcissels and American goldfinches have been observed (Zimmerman, 1992; Robel et al., 1998; Fuhlendorf et al., 2006).
Irrespective of treatment effects, there were also between-year changes in density or occurrence of red-winged blackbirds, common yellowthroats, American goldfinches, grasshopper sparrows and grassland-and-wetland-bird species richness.
Small, brightly colored birds with a large, conical "finch" bill, American goldfinches
are sometimes mistaken for canaries by some people.
Here they are visited regularly by house finches, purple finches, American goldfinches
, pine siskins, chickadees and several varieties of sparrows.
Also, 59 horned larks; a record 1,366 black-capped chickadees; 25 brown creepers; 31 Carolina wrens, a new high; 48 golden-crowned kinglets; one ruby-crowned kinglet; 31 eastern bluebirds; two hermit thrushes; 2,255 American robins; one gray catbird; 23 northern mockingbirds; 2,760 European starlings; 175 cedar waxwings; two eastern towhees; 86 American tree sparrows; one chipping sparrow; one field sparrow; one savanna sparrow; 58 song sparrows; five swamp sparrows; 214 white-throated sparrows; 2,093 dark-eyed juncos; 13 snow buntings; 215 northern cardinals, a new record; 147 red-winged blackbirds, another record; one common grackle; 24 brown-headed cowbirds; 84 house finches; 449 American goldfinches
; and 753 house sparrows.
But the kinds of birds that are most often attracted to backyard birdfeeders everywhere are black-capped chickadees, tufted titmice, white-breasted nuthatches, American goldfinches
, mourning doves, downy and hairy woodpeckers, blue jays, house finches, northern cardinals, slate-colored juncos and American tree sparrows.
Among the larger numbers recorded this year - along with the evening grosbeaks, pine grosbeaks and common redpolls - were 731 house sparrows, 689 rock (Dove) pigeons, 533 dark-eyed juncos, 508 cedar waxwings, 478 starlings, 462 American tree sparrows, 396 American crows, 383 tufted titmouse, 326 American goldfinches
, 275 mourning doves, 252 snow buntings, 230 wild turkeys, 217 black-capped chickadees, 204 white-breasted nuthatches, 126 northern cardinals, 131 downy woodpeckers, 111 common ravens and 101 blue jays.