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Most birds moult twice a year, resulting in a breeding or nuptial plumage and a basic plumage. Many ducks and some other species such as the red junglefowl have males wearing a bright nuptial plumage while breeding and a drab eclipse plumage for some months afterward.
Also, nuptial plumage; breeding plumage. The plumage of birds during the courtship or breeding season. ... The interior of the open mouth of a bird. [233]
Their flight is weak. They rest horizontally on branches during the day, camouflaged by their cryptic plumage. Through convergent evolution as night hunters, they resemble owls, with large front-facing eyes. [citation needed] Up to three white eggs are laid in the fork of a branch, and are incubated by the female at night and the male in the day.
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 second down occurs on the 7th day and the juvenile plumage comes in around 3 to 4 weeks. This plumage is a softer and looser texture with more pointed primary feathers. Within a few weeks of fledging, the first adult plumage comes in. The frogmouth has one moult per year. [6]
The nightjars, Caprimulgidae, are a large family of mostly nocturnal insect-eating birds. The largest and most widespread genus is Caprimulgus, characterised by stiff bristles around the mouth, long pointed wings, a comb-like middle claw and patterned plumage.
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]
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]