Fork-tailed Swift

Apus pacificus

Order

APODIFORMES

Family

Swifts (Apodidae)

Code 4

FTSW

Code 6

APUPAC

ITIS

Egg Color:

White



Number of Eggs:

2 - 3



Incubation Days:

19 - 22



Egg Incubator:

Both sexes



Nest Location:

Close to water in ridges of cliffs or under crevices of roofs.



Nest Material:

Grasses, mosses, leaves.



Migration:

Migratory



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General

Fork-tailed Swift: Large swift, brown-black overall with white throat and rump, scaled belly, and long, deeply forked tail. Sexes are similar. Juvenile has pale forehead.

Range and Habitat

Fork-tailed Swift: A rare vagrant in Western Europe, but has been recorded as far west as Norway and Great Britain; spends winters south to Australia. Casual to rare summer visitor on the western Aleutians and Pribilof islands of Alaska. Preferred habitats include mountains and human habitations, usually near water.

Breeding and Nesting

Fork-tailed Swift: Two to three white eggs are laid in a nest made of grass, moss, and leaves, glued together with sticky saliva, and built on a cliff ridge or under a roof crevice; usually nests near water. Incubation ranges from 19 to 22 days and is carried out by both parents.

Foraging and Feeding

Fork-tailed Swift: Feeds on insects; forages in flight.

Vocalization

Fork-tailed Swift: Song is a short chatter "chree-chree-chree-chree-chree." Common call is a shrill, reedy scream as in "srreeeeerrr." Also emits low-pitched single "srree" calls.

Similar Species

Fork-tailed Swift: Other swifts lack deeply forked tail.

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BellyX
The ventral part of the bird, or the area between the flanks on each side and the crissum and breast. Flight muscles are located between the belly and the breast.
RumpX
The area between the uppertail coverts and the back of the bird.
Parts of a Standing bird X
Head Feathers and Markings X
Parts of a Flying bird X