Dodatkowe przykłady dopasowywane są do haseł w zautomatyzowany sposób - nie gwarantujemy ich poprawności.
A rather unusual finch that has been reported around these parts is the red crossbill.
At the age of fourteen, he made his first painting of a bird, a male Red Crossbill, from life.
The red crossbill exhibits a preference (not a requirement) for long-day seasonality, but requires other factors, especially food abundance and social interactions, in order to breed.
It provides food and shelter for numerous forest birds, such as the Red Crossbill, and small mammals such as squirrels.
The Red Crossbill breeds in the spruce forests of North America, as well as Europe and Asia.
The identification problem is less severe in North America, where only Red Crossbill and White-winged Crossbill occur.
Two-barred is easier to identify than other crossbills, especially in North America, where only Red Crossbill and this species occur, but some care is still needed.
The fall can be a good time to spot towhee, jay, junco, Say's Phoebe, Red Crossbill, and Pine Siskin.
Birds present include Red Crossbill (Loxia curvirostra), Steller's Jays, Common Ravens and many others.
In North America, nine distinct Red Crossbill variants (referred to as call types) differing in vocalizations as well as beak size and shape are recognized.
For example, the culmen of the Parrot Crossbill is strongly decurved, while that of the very similar Red Crossbill is more moderately curved.
It was considered to be possibly a race of either the Red Crossbill or the Parrot Crossbill, both of which also occur in the Caledonian Forest.
However, the American Ornithologists' Union failed to find consensus on the issue so the South Hills Crossbill is still considered a subspecies of the Red Crossbill.
The Red Crossbill (Loxia curvirostra) is a small passerine bird in the finch family Fringillidae, also known as the Common Crossbill in Eurasia.
A Hybrid Red Crossbill Pine Siskin Loxia-Curvirostra X Carduelis-Pinus and Speculations on the Evolution of Loxia.
There is also a small population in Scotland, adding to the difficulty of distinguishing it from Red Crossbill and the endemic Scottish Crossbill, both of which breed within its range.
The most common are the Clark's nutcracker, black-capped chickadee, mountain chickadee, boreal chickadee, red-breasted nuthatch, pygmy nuthatch, red crossbill, white-winged crossbill, dark-eyed junco, and pine siskin.
Many bird species are found in the forests on North Mountain, including the state's only population of Blackpoll Warbler; other birds seen there include Evening Grosbeak, Northern Goshawk, Red Crossbill, and Swainson's Thrush.
The greatest eastward irruptions often occur in wet periods and are synchronized with irruptions of other seedeating birds such as the Red-breasted Nuthatch, the Red Crossbill, and the other North American goldfinches (Davis 2001).
Some pine-feeding populations currently assigned to Red Crossbill in southern Europe may possibly be better referred to either this species or alternatively to new species in their own right, but as yet, research into them is still at a very early stage.
Work on vocalisation in North America suggest that there are eight or nine discrete populations of Red Crossbill in that continent alone, which do not interbreed and are (like the named species) adapted to specialise on different conifer species.
Within its Eurasian range, this species is smaller-headed and smaller-billed than Parrot Crossbill and Scottish Crossbill, so the main confusion species both there and in North America is Common or Red Crossbill.
The Newfoundland Red Crossbill is a member of the crossbill genus which has its crossed bill adapted for prying open the tightly closed spruce or pine cones in order to extract the seeds found abundantly on the island of Newfoundland.
For example, the South Hills Crossbill, occurring in the South Hills and Albion Mountains in Idaho has been described as a new species (Loxia sinesciuris) because it shows a very low degree of hybridization with the Red Crossbill.
Bird species native to the area include sage grouse, Mountain Chickadees, Gray-headed Juncos, Black-throated Gray Warbler, Virginia's Warbler, MacGillivray's Warbler, Pine Siskin, Red Crossbill, Bushtit, Hermit Thrush, and Northern Goshawks, ravens, and eagles.
Crossbill ( Loxia curvirostra )
He was one of the first authors to contribute to the Irish Naturalist (1892 The crossbill (Loxia curvirostra L.) in Ireland.
Birds present include Red Crossbill (Loxia curvirostra), Steller's Jays, Common Ravens and many others.
The Red Crossbill (Loxia curvirostra) is a small passerine bird in the finch family Fringillidae, also known as the Common Crossbill in Eurasia.