crossbill


Also found in: Dictionary, Thesaurus, Wikipedia.

crossbill,

bird of the genus Loxia, in the finchfinch,
common name for members of the Fringillidae, the largest family of birds (including over half the known species), found in most parts of the world except Australia.
..... Click the link for more information.
 family. Its bill, crossed at the tips, is specialized for pulling apart pine cones and picking out the seeds. Crossbills are found in the evergreen forests of the Northern Hemisphere, as far south as NW Africa and Guatemala. Two species occur in the United States. The red crossbill (L. curvirostra) is found in Europe and in N and central Asia as well as in North America. Males have orange to dull red plumage, with black wings. The white-winged crossbill (L. leucoptera) occurs in northern Russia and in North America; the male of this species is rosy red and both sexes are marked with white wing bars. Females of both species are olive-gray and yellow; they lay three to four pale green, brown-spotted eggs, in well-formed nests built in trees. Crossbills are not considered migratory, but they shift their breeding grounds erratically, probably in response to the availability of pine cones. Sometimes they suddenly appear in large numbers in areas where they were formerly rarely seen. They are classified in the phylum ChordataChordata
, phylum of animals having a notochord, or dorsal stiffening rod, as the chief internal skeletal support at some stage of their development. Most chordates are vertebrates (animals with backbones), but the phylum also includes some small marine invertebrate animals.
..... Click the link for more information.
, subphylum Vertebrata, class Aves, order Passeriformes, family Fringillidae.

crossbill

any of various widely distributed finches of the genus Loxia, such as L. curvirostra, that occur in coniferous woods and have a bill with crossed mandible tips for feeding on conifer seeds
References in periodicals archive ?
As such, the red crossbill is added to the list of permanent avian residents for Nuevo Leon.
The researchers examined the carotenoid content of the liver, blood, skin and feathers of seven common crossbills (finches) in which adult males display carotenoid-based coloration on the throat, breast and rump.
Remember, if climate chaos continues the Scottish crossbill will be toast.
Seeds of pines are eaten by game birds such as turkey and quail; songbirds such as Red Crossbill, Evening Grosbeak, Brown-headed Nuthatch, Pine Siskin, Car olina Chickadee, and Pine Warbler; and mammals such squirrels and mice (Martin, et al.
Adaptation to single resources and the evolution of crossbill (Loxia) diversity.
The book then ends with six diarylike entries about Rigoni's life today in his sylvan retreat, the birds and animals that share his space on the planet with him, and memories of his own past and of his native region that are almost as vivid to him as the roebucks, fox, and crossbill who visit his yard and garden.
He says a crossbill bites between the scales on a cone, then "chews" sideways, moving the lower jaw to the left or the right (depending on the direction in which the tips cross).
When the reserve is at its peak flowering in summer, the meadow pulsates with the rhythmic fluttering of butterflies and moths such as Marbled White, Small Skipper and the stunning Narrow-Bordered Five-Spot Burnet, along with birds such as Hawfinch, Crossbill and Spotted Flycatcher.
Aside from the Scottish Crossbill, which occurs nowhere else, it is the Curlew for which we hold an international responsibility.
Among these trees live some of Britain's most endangered bird species, including the capercaillie and Scottish crossbill, a separate species endemic to the Caledonian forests, and with a population of fewer than 2,000.
Sand Martin, Golden Plover, Blk Guillemot, Chough, Crossbill, Peregrine @A470training: Just had great news, Tess has been found in Mid Wales (no news of pup yet) THANK YOU for all your help searching for the #trawsfynyddtwo xxx @DavidRPhotos: Just had great news, Tess has been found in Mid Wales (no news of pup yet) THANK YOU for all your help searching for the #trawsfynyddtwo xxx @WayneRooney: I want to apologise to Jamie Thomas, I have arranged for a letter and a signed shirt to be sent to his home address @jameslynden: Other side of office.
The study, carried out by the RSPB in Highland forests, identified the Scottish crossbill as the UK's only endemic bird species, meaning it is not found anywhere else.