Occupancy of American robin
and Northern cardinal were positively related to percentage of bare ground, indicating these species prefer sites with a more open understory.
Bobolinks had the lowest overall predation rate (22%) and among the passerines, American robins
had the highest (50%).
We investigated the mass death of American Robins
(Turdus migratorius) that had congregated around a single fruiting crabapple tree (Malus spp.
Similarly, American Robin
nesting success was higher in fragmented landscapes dominated by agriculture.
The American Robin
(Turdus migratorius) and Cedar Waxwing (Bombycilla cedrorum) are two North American migrant species with large wintering ranges with in the United States (Root 1988).
Silent Spring said the American robin
was "on the verge of extinction," yet Roger Tory Peterson (the dean of American ornithologists) said it was the most numerous bird on the continent.
In 1866 Jesse was declared an outlaw, and for the next sixteen years was a desperado who committed daring crimes, stole from banks and railroads, caused the deaths of a number of people, and managed nevertheless to become a popular hero, an American Robin
and an American robin
was seen carrying a juvenile common garter snake, Thamnophis sirtalis (Jayne and Bennett, 1990).
Both studies involved a secretive relative of the American Robin
called Swainson's Thrush (Catharus ustulatus).
Among resident passerines, Tufted Titmouse, Northern Cardinal, American Goldfinch, Brown-headed Cowbird, Eastern Towhee, Carolina Chickadee, White-breasted Nuthatch, Carolina Wren, and American Robin
were abundant at all three sites.
They favour other cuckoos or species that have similar coloured eggs to their own, such as the American robin
and other thrushes.
blood meals accounted for only 12% of the blood meals and were found only in parks, preserves, and residential and storm water catch basins habitats.
Some twitchers had travelled hundreds of miles to catch a glimpse of the American robin
, which had been roosting at an industrial estate for two months.
The boat is lying just offshore and great news from the island: the American Robin
is still there
For the American robin
, a bird not susceptible to parasites and predators, the researchers found this to indeed be the case.