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For birds that do not completely molt into full adult plumage the first time, a numbering system is used to signify which plumage it is in. For example, for the first time a bird enters basic plumage, the plumage is known as first basic plumage; the second, second basic plumage. The numbers are dropped after a bird achieves its full adult plumage.
The alternate plumage is often brighter than the basic plumage, for sexual display, but may also be cryptic to hide incubating birds that might be vulnerable on the nest. [ 7 ] The Humphrey–Parkes terminology requires some attention to detail to name moults and plumages correctly.
Bird ringing is the term used in the UK and in some other parts of Europe, while the term bird banding is more often used in the U.S. and Australia. [49] bird strike The impact of a bird or birds with an airplane in flight. [50] body down The layer of small, fluffy down feathers that lie underneath the outer contour feathers on a bird's body. [51]
Plumage is regularly moulted; the standard plumage of a bird that has moulted after breeding is known as the "non-breeding" plumage, or—in the Humphrey–Parkes terminology—"basic" plumage; breeding plumages or variations of the basic plumage are known under the Humphrey–Parkes system as "alternate" plumages. [130]
Western style emoticons are mostly written from left to right as though the head is rotated counter-clockwise 90 degrees. One will most commonly see the eyes on the left, followed by the nose (often omitted) and then the mouth. Typically, a colon is used for the eyes of a face, unless winking, in which case a semicolon is used.
The supercilium is a plumage feature found on the heads of some bird species. It is a stripe which runs from the base of the bird's beak above its eye, finishing somewhere towards the rear of the bird's head. [1] Also known as an "eyebrow", [1] it is distinct from the eyestripe, which is a line that runs across the lores, and continues behind ...
Their soft plumage is cryptically coloured to resemble bark or leaves, and some species, unusual for birds, perch along a branch rather than across it, helping to conceal them during the day. The subfamilies of nightjars have similar characteristics, including small feet, of little use for walking, and long, pointed wings.
The brown and gray plumage of this tropical bird resembles tree bark. [3] This plumage is a soft and mottled cryptic plumage. The physical appearance differs from other species by a heavier black marking above breast as well as no rufous on breast. [5] Hodgson's frogmouth is the most well-marked sexual dichromatic of all frogmouths. [6]