White-winged Crossbill
| Loxia leucoptera |
Order PASSERIFORMES - Family FRINGILLIDAE - Subfamily Carduelinae |
White-winged Crossbill male, Ithaca NY, December
About the photographs
White-winged Crossbill, female
White-winged Crossbill male feeding from spruce cone; Ithaca, NY.
Menu
- Description
- Sound
- Conservation Status
- Other Names
- Cool Facts
- Full detailed species account
A medium-sized finch of the boreal forest, the White-winged Crossbill is adapted for extracting seeds from the cones of coniferous trees. It moves large distances between years tracking the cone crop from place to place.
Description
- Stocky red or greenish finch.
- Black wings with two large white wingbars.
- Short, notched tail.
- Thick, curved bill with crossed tips.
- Size: 15-17 cm (6-7 in)
- Wingspan: 26-27 cm (10-11 in)
- Weight: 24-26 g (0.85-0.92 ounces)
Sex Differences
Male red or pink, female yellow-green.
Sound
Song is a series of trills interspersed with chirps and warbles. Call a very dry, rapid "chut-chut-chut-chut.?
»listen to songs of this species
Conservation Status
No indication of declines; may be increasing in some areas. Abundant in some areas in some years, but absent the next.
Other Names
Bec-croisé à Ailes Blances (French)
Pico Cruzado (Spanish)
Two-barred Crossbill (British) (English)
Cool Facts
- Individual White-winged Crossbills can eat up to
3,000 conifer seeds each day.
- Breeding of the White-winged Crossbill is opportunistic
and can occur throughout the year whenever food is sufficient for
the female to form eggs and raise young. The species has been recorded breeding
in all 12 months.
- White-winged Crossbills with lower mandibles crossing to the right
are approximately three times more common than those with lower mandibles crossing to the left.
- Adult White-winged Crossbills change (molt) their
feathers once each year, usually in the autumn. The red feathers of the male
have unpigmented barbules on the surface that mask the red and make the bird
appear pink at first in the fall. As these barbules wear off the bright red
shows through, making the spring and summer male brilliantly colored.
- The Hispaniolan Crossbill (Loxia megaplaga) used to be considered a subspecies
of the White-winged Crossbill. It is found only in the pine forests of Haiti
and the Dominican Republic.
Sources used to construct this page:
Benkman C. W. 1992. White-winged Crossbill (Loxia leucoptera). In The Birds of North Americaa, No. 27 (A. Poole, P.
Stettenheim, and F. Gill, Eds.). Philadelphia: The Academy of Natural Sciences;
Washington, DC: The American Ornithologists? Union.