[HBW - BirdLife (v3)]
02/05/2024 10:36:52 PM
An enlargement of the upper surface of the bill in front of the head (eg hornbills) or on top of the head (eg cassowaries)
A species outside of its normal range, though not neccessarily outside its normal habitat. Reported more frequently than accidentals or vagrants.
Fleshy covering at the base of bill found in Hawks, pigeons and other birds. Often distinctly colored
The area below the eyes on the side of the head (see )
Pointed or V-shaped contrasting marks on the bend of the wing or in bands across the breast.
The region immediately below the lower mandible (see )
Of or inhabiting the region around the Arctic or Antarctic.
A graded series of changes in the 'character' of a bird across a geographic area (eg. bill size, coloration)
Combined terminal opening of the alimentary (feces), excretory (urine) and reproductive (semen, eggs) systems
A band of contrasting color circling the neck.
Roosting or nesting in groups or colonies
A member of the same genus - a close relative
A member of the same species
Worldwide in distribution, or occuring on all continents except the polar regions.
Small feathers that cover the bases of the large flight feathers of the wings and tail, or that cover parts of the body structure (see )
Active only at dusk and dawn
A projection of feathers on the top of the head. The crest is not also visible (see )
A thin stripe from the base of the bill over the crown (see )
Providing concealment or disguise either by coloration or pattern
The ridge along the whole length or top of the upper mandible
Adpated to running but not necessarily flightless
A decisively different, distinctive feature or features (eg build, colors, calls) that helps to clearly identify a bird beyond reasonable doubt.
Two plumage types within a species, for example, sexual dichromatism: male and female are colored differently
The formation of the wings in gliding flight when the wings are held raised above the horizontal plane, in a shallow V
Having two physical forms, for example, plumage dimorphism: two life-long plumage types within a single species, not related to age or gender; sexual dimorphism: male and female of different size
Behaviour designed to demonstrate a birds presence
Pertaining to the upper surface of the body
Relating to the pattern of markings on a egg (see )
Male and female singing together, in response to each other usually uttering differing song patterns
Part of the small intestine between the gizzard and the ileum
The feathers covering the ears (see )
Feathers protruding near ears
The feathers overlying the ear (ear coverts)
Emission of high-frequency sounds to locate objects
Dull, seasonal plumage assumed by many species during late summer, fall or winter. Replaces breeding plumage. In the case of waterfowl it may not be possible to distinguish between sexes.
Tiny scale-like protrusion on upper bills of many chicks to help them chip through the egg shell during hatching
Having narrow inner and outer webs on the ends of the primary feathers, thus producing separated feathers and slotted tips on the fully spread wing
Native to or peculiar to a particular or defined area
Living as a species at the present time
No individuals of a species surviving at the present time; gone forever; no longer extant
Outside of the normal range
A narrow stripe that runs horizontally from the base of the bill through the eye (see ) Same as Eyeline
The narrow ring surrounding the eye (see )
Strip above the eye (supercillium) (see )
A narrow stripe that runs horizontally from the base of the bill through the eye (see ) Same as Eye Stripe
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1 Abdomen
2 Casque
3 Face
4 Lamellate
5 Old World
6 Refugium
7 Superfamily
8 Whisker-mark
