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A wing-clipped Meyer's parrot perching on a drawer handle. While clipping is endorsed by some avian veterinarians, others oppose it. [7]By restricting flight, wing clipping may help prevent indoor birds from risking injury from ceiling fans or flying into large windows, but no evidence shows that clipped birds are safer than full-winged ones, only that clipped birds are subject to different ...
This is an accepted version of this page This is the latest accepted revision, reviewed on 11 January 2025. Small, long-tailed, seed-eating parakeet Budgerigar Temporal range: Pliocene–Holocene Pre๊ ๊ O S D C P T J K Pg N Blue cere indicates male Flaking brown cere indicates female in breeding condition Conservation status Least Concern (IUCN 3.1) Scientific classification Domain ...
Green Clearwinged (a.k.a. Yellow Wing) and Dominant Grey-Factor appear in Australia. Both the NSL & the SL Lutino gene occurred in England and continental Europe. Three Opaline mutations occurred. An Opaline Green hen was captured in the wild and sold to S. Terril in Adelaide.
The double-factor Dominant Clearbody, with two Dominant Clearbody alleles, is believed to have a clearer body and darker wing markings than the single-factor Dominant Clearbody. The Dominant Clearbody gene is located on one of the autosomal chromosomes. There is no known linkage of this gene with any other mutation.
In both the blue and green series birds the flights and long tail feathers are black. The pattern of black on the wing and tail markings is unchanged, but they are darkened to a jet black, resulting in high contrast between the black and yellow, which is particularly noticeable in the tail bar when the bird is in flight.
The body colour of the Greywing variety is about half the intensity of the corresponding normal variety, and the wing, head and neck markings are similarly reduced in intensity from black to mid-grey. [1] The spots are grey and the cheek patches are pale violet. The tail feathers are grey with a bluish tinge.
I J J Symes gave a description [10] of what he called "the brown factor" in this bird, saying the wing markings varied from raw umber to burnt sienna. A D Simms, of Potter's Bar, also in Middlesex at the time, paired together several Dark Green split greywing siblings in 1931 bred from an Olive cock and a Greywing Light Green hen. Among other ...
The genetics of the several Yellowface mutations and their relation to the Blue mutation are not yet fully and definitively understood. [4] [5]Much confusion and misunderstanding have arisen because the popular names given to these mutations are misleading.