Waxwings | |
---|---|
Bohemian waxwing | |
Scientific classification | |
Kingdom: | Animalia |
Phylum: | Chordata |
Class: | Aves |
Order: | Passeriformes |
Suborder: | Passeri |
Family: |
Bombycillidae Swainson, 1831 |
Genus: |
Bombycilla Vieillot, 1808 |
Species | |
The waxwings are passerine birds classified in the genus Bombycilla. They are brown and pale grey with silky plumage, a black and white eyestripe, a crest, a square-cut tail and pointed wings. Some of the wing feathers have red tips, the resemblance of which to sealing wax gives these birds their common name. According to most authorities, this is the only genus placed in the family Bombycillidae, although Phainoptila is sometimes included. There are three species, the Bohemian waxwing (B. garrulus), the Japanese waxwing (B. japonica) and the cedar waxwing (B. cedrorum).
Waxwings are not long-distance migrants, but move nomadically outside the breeding season. Waxwings mostly feed on fruit, but at times of year when fruits are unavailable they feed on sap, buds, flowers and insects. They catch insects by gleaning through foliage or in mid-air. They often nest near water, the female building a loose nest at the fork of a branch, well away from the trunk of the tree. She also incubates the eggs, the male bringing her food to the nest, and both sexes help rear the young. Waxwings appear in art and have been mentioned in literature.
Waxwings are characterised by soft silky plumage. (Bombycilla, the genus name, is Vieillot's attempt at Latin for "silktail", translating the German name Seidenschwänze.) They have unique red tips to some of the wing feathers where the shafts extend beyond the barbs; in the Bohemian and cedar waxwings, these tips look like sealing wax, and give the group its common name. The legs are short and strong, and the wings are pointed. The male and female have the same plumage. All three species have mainly brown plumage, a black line through the eye and black under the chin, a square-ended tail with a red or yellow tip, and a pointed crest. The bill, eyes, and feet are dark. The adults moult between August and November, but may suspend their moult and continue after migration. Calls are high-pitched, buzzing or trilling monosyllables.
These are arboreal birds that breed in northern forests (Witmer and Avery 2003). Their main food is fruit, which they eat from early summer (strawberries, mulberries, and serviceberries) through late summer and fall (raspberries, blackberries, cherries, and honeysuckle berries) into late fall and winter (juniper berries, grapes, crabapples, mountain ash fruits, rose hips, cotoneaster fruits, dogwood berries, and mistletoe berries) (MacKinnon and Phillipps 2000, Witmer and Avery 2003). They pluck fruit from a perch or occasionally while hovering. In spring they replace fruit with sap, buds, and flowers. In the warmer part of the year they catch many insects by gleaning or in midair, and often nest near water where flying insects are abundant.