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[HBW - BirdLife (v3)] |
19/04/2024 01:31:05 PM |
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Undersurface of a bird's body, from the top of the sternum to the cloaca
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Wearing down of the feathers
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Uncommon visitor, arriving only when blown off course or disorientated; same as Vagrant
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Forest hawk with short, rounded wings and long tails
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Process of adjusting to change in environment, usually temperature
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The condition of an egg wherein the developing embryo has died, usually in its early stage
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Bird with fully developed final plumage
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Partial lack of normal pigments in plumage, skin, resulting in white or patchy-white areas
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Total lack of normal pigments. Even the eyes are pink
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The egg white surrounding and protecting the yolk
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Preening of one bird by another
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The geographical range of one species does not overlap with that of another, similar, species
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Eyes closed, little or no down, unable to leave nest and are fed by parents (passerines).
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Four small feathers found on a birds thumb. They control airflow of the leading edge of the wing
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Fluid-filled sac enclosing the embryo inside the eggshell
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Comfort behavior of certain passerine bird wherein the plumage is treated with body fluids of ants, likely for feather maintenance
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Two birds contributing to the same song, each taking a different part
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An area of skin from which no feathers grow, except down feathers (see Pteryla)
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Inhabiting trees, often the canopy
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Believed to be the earliest known fossil bird, first described in 1861
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Proportion of wing length to breadth
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A collection of birds of the same kind
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A clutch of eggs hatching progressively, not all at the same time (synchronously)
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Scientific name of class of animals known as birds (sing. avis)
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Feathers in the axilla, or 'armpit' (see)
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Upper surface between the mantle and the rump (see)
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A fine, transverse mark on the feathers. For example, on the wing (see)
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Branch of the central shaft of a feather
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Branch of the Barb of a feather
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Lower part of the undersurface, before the undertail coverts (see)
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Rounded breast patch from the chin
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Having two mates at the same time
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The beak. The collective name for the upper and lower mandibles (see)
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Relating to the pattern of markings on a egg (see)
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To drink.
Otherwise bouse, boose, bouse, booze.
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Upper part of the undersurface above the belly and below the throat (see)
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Plumage worn during the breeding season. It is often more highly colored than the non-breeding plumage.
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To hide surplus food, for example in crevices, for later retrieval
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Brief sound used for contact within a species, to warn of danger, and so on. Same throughout the year
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Patch of color covering the crown, or part of the crown.
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Relating to the pattern of markings on a egg (see)
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Area of feathers at wrist joint of wings. Contrastingly marked in some birds of prey
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Dead animals eaten by some birds, such as vultures
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An unfeathered flap or appendage of fleshy texture, often brightly colored and possibly significant in display or species recognition
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