Separate names with a comma.
Discussion in 'Bird Taxidermy' started by Taxi-lover, Jul 11, 2011.
Great birds, thanks for sharing, wishing you well, stargazer.
Very nice birds Pat!
Thanks you guys!
wow pat every time i see your pics it gives me ideas for my birds. Well when i can get time for them.
whow pat..i really luv the tan bottom goose..and the wing placement on the top goose looks awesome...
Wow , fantasic work Pat!!!
hey Pat is that common for a tavener to have those white feathers on the wings?? that cackler is sure some preety goose!!
Thanks again for the comments. I truly appreciate it. Alan - The white flecking on the wings of the tav seems to be somewhat common in all the canada subspecies. It isn't a taverner specific feature.
I shot and mounted a 21 pound minnesota giant with similar markings
I have always thought that it was age-related since the ones that have the most white coverts also tend to have other signs of age.
I'm not 100% sure about it, but it seems to be fairly consistent so far.
Very nice work Milo!!
GREAT PICKS J.P. BEAUTIFUL WORK BLAKE AND FALCO. THOSE GEESE ARE GREAT PAT
Glad to see new members also,WELLCOME!!!
That goose looks like it had a dilution gene, and not 'leucisism'.
It is similar to C-diluted in mice. Though I am not familiar enough with bird genetics, to comment on what type of dilution gene it may have.
Rhasputin, there are a bunch of different dilution genes. Some only work on certain types of pigment and some work on all of them.
Leucism doesn't mean the same thing that it did when I took genetics. Back then, we made a very clear distinction between leucism and the piebald factor because they are completely different alleles and an animal can have either, neither, or both. Nowadays leucism has come to mean anything that interferes with pigment structure or distribution, so it has become so broad a term that it is almost meaningless.
C-dilution, if it's what I think it is, is sort of a catch-all term for Color dilution. At least that's how it is in turkeys and some other things that I studied. "C" meaning full colored and dominant, and "c" meaning dilute colored and recessive.
On birds, most types of leucism are sex-linked, but most, if not all, of the piebald factors are not. That's why most of the wild dilute birds that are seen will be females. The most common form seems to be the type that dilutes normal melanin but doesn't affect phaeomelanin (a yellowish or reddish brown pigment) or caretenoid pigments as much, so the birds end up being sort of a fawn color and very prone to fading in sunlight. There is a much rarer version of leucism that does just the opposite, and it gives us things like silver wood ducks.
I will stop now .... before I type a whole book and bore everybody to death.
Very nice work folks. As for the white specking on the wings, I've mounted up a couple giant Canadas with that trait. Makes an interesting piece. Just finished a few.
Nancy - It was an adult female... Good post. I know very little on this topic.