Summary: TEHRAN (FNA)- Territorial song sparrows
use increasingly threatening signals to ward off trespassing rivals.
This distinction is somewhat arbitrary since song sparrows
(Melospiza melodia) occasionally nest in shrubs well above ground level (Arcese and others 2002) while red-winged blackbirds occasionally place their nest close to ground level (Yasukawa and Searcy 1995).
Effects of weather and population density on reproductive success and population dynamics in a song sparrow
(Melospiza melodia) population: A long-term study.
A song sparrow
nestling is deafened, and when it grows up it cannot sing.
Ambrosia occurred more frequently in white-throated sparrow and song sparrow
food availability samples than in those of northern cardinals, and Digitaria was recorded in higher percentages of song sparrow
and dark-eyed junco than white-throated sparrow food availability samples.
For the nonalcohol crowd, there are the Eastern towhee, who tells us Drink your tea; the Carolina wren, who loudly sings teakettle, teakettle, teakettle; and the song sparrow
, whose complex song Richard Walton describes as Maids maids maids pick up the tea kettle kettle kettle.
Intrasexual competition, mating system and natal dispersal in the song sparrow
. Animal Behaviour 38: 958-979.
The five most frequent species were the song sparrow
, red-winged black-bird, field sparrow, eastern meadowlark, and ring-necked pheasant, whereas, the red-winged blackbird, song sparrow
, Henslow's sparrow, bobolink, and eastern meadowlark were the most abundant (Table 2).
Since a large fraction of song sparrow
pairs on Mandarte Island (43%) are not paired for life, an analysis of the effects of all three parameters on LRS is not possible.
'Those people back on Fair Isle, they've got such hospitality, they even sent out an invitation to that song sparrow
and had it over and kept it happy until the ship arrived, just to please us.
Population genetic analyses and ecological niche models were used to examine a ring of song sparrow
(Melospiza melodia) subspecies that surround the Sierra Nevada in North America.
We found that local bird species most frequently infested by ticks include the low-foraging grouse, turkey, chickadee, house wren, gray catbird, brown thrasher, robin, wood thrush, hermit thrush, Swainson's thrush, veery, yellow warbler, ovenbird, northern waterthrush, Connecticut warbler, mourning warbler, common yellowthroat, goldfinch, rufous-sided towhee, field sparrow, white-throated sparrow, swamp sparrow and song sparrow
Sparrow Splits: A Song Sparrow
(Melospiza melodia) out and about on a snowy day; Gallipolis, Ohio
Abundance of breeding birds in 2007 was highest in the Red-winged Blackbird, Song Sparrow
(Melospiza melodia), and Gray Catbird (Appendix 2).
Thanks to the miracle of modern electronics, tags weighed only about 4 percent of the weight of a song sparrow
. At that size, the batteries lasted only five or six weeks, necessitating trapping the youngster at the right time for a switch.