Gyrfalcon

Falco rusticolus

Order

FALCONIFORMES

Family

Falcons (Falconidae)

Code 4

GYRF

Code 6

FALRUS

ITIS

HEAD

Bill Shape: Hooked
Eye Color: Dark brown.
Head Pattern: Streaked, Unique pattern
Crown Color: White to gray-brown.
Forehead Color: White to gray-brown.
Nape Color: White to gray-brown.
Throat Color: White to gray-brown.
Cere color: Yellow

BODY

Length Range: 51-64 cm (20-25 in)
Weight: 1179 g (41.6 oz)
Size: 4. Large (16 - 32 in)
Color Primary: White, Gray
Underparts: White to gray-brown with speckles.
Upperparts: White to gray-brown.
Back Pattern: Spotted or speckled, Solid, Scaled or Scalloped
Belly Pattern: Striped or streaked, Solid, Mottled
Breast Pattern: Striped or streaked, Solid, Mottled

FLIGHT

Flight Pattern: Sometimes soars on thermals., Slow powerful steady wing beats.
Wingspan Range: 122-163 cm (48-64 in)
Wing Shape: Pointed-Wings, Long-Wings
Tail Shape: Fan-shaped Tail
Tail Pattern: Barred
Upper Tail: White to gray-brown.
Under Tail: White to gray-brown.
Leg Color: Yellow

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Bird Call Credits: The Macaulay Library of Natural Sounds at the Cornell Lab of Ornithology. Martyn Stewart, http://www.naturesound.org, Redmond, Washington USA. The reuse or copying of bird calls in this database is strictly forbidden2.

Field Guide to Birds of North America