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Field Guide to Birds of North America
Species Overview
Identification
Behavior
Portrait
Juan Fernandez Petrel
Pterodroma externa
Order
PROCELLARIIFORMES
Family
Petrels and Shearwaters (Procellariidae)
Code 4
JFPE
Code 6
PTEEXT
ITIS
HEAD
Bill Shape:
Hooked Seabird
Eye Color:
Black
Head pattern:
Unique pattern
Crown Color:
Gray-brown to black.
Forehead Color:
White with gray specks.
Nape Color:
Gray
Throat Color:
White
Cere color:
No Data
SPONSORED ADVERTISEMENTS
BODY
Length Range:
43-46 cm (17-18 in)
Weight:
555 g (19.57 oz)
Size:
Large (16 - 32 in)
Color Primary:
Gray
Underparts:
White
Upperparts:
Gray with white-gray scaling on back and black-gray rump, tertials, and secondary coverts that form an "M" pattern on the upperparts.
Back Pattern:
Scaled or scalloped
Belly Pattern:
Solid
Breast Pattern:
Solid
FLIGHT
Flight Pattern:
Alternates glides with rapid wing beats.
Wingspan Range:
95-97 cm (37.4-38.1 in)
Wing Shape:
Pointed-Wings
Tail shape:
Rounded Tail
Tail Pattern:
Solid
Upper Tail:
Gray
Under Tail:
Gray
Leg Color:
Yellow with black toes.
.
Parts of a Standing bird
X
Head Feathers and Markings
X
Parts of a Flying bird
X