[CT Birds] A red bird question...
ashippee at snet.net
Tue Apr 23 12:55:25 EDT 2013
But that's part of their diet for a short time, too short, I think, to account fully for the coloring.
Perhaps a factor -- but some chemistry would help: do the dyes in the Maples survive digestion or break down? Are they the same chemicals as the color in the feathers?
On Apr 23, 2013, at 12:43 PM, Carrier Graphics <carriergraphics at sbcglobal.net> wrote:
> Several years ago, I wrote an article about the arrival timing of PURPLE FINCH
> with the flowering of the Red Maple in spring, and how they eat the flowers of
> this tree as well as the buds. This spring, as usual, here they are in numbers
> as the Red Maples bloom. So a question came up:
> Can the bright raspberry red color of the Purple Finch have anything to do with
> the bright red of the Maples flowers of which they eat?
> I searched that other Finches, besides Purples, also eat the flowers as well.
> They are:
> Pine Siskin
> Pine Grosbeak
> Evening Grosbeak
> House Finch
> Three of these birds above also poses Red in their plumage.Plus 13 other species
> of birds also eat the buds and flowers of red Maples as well as the seeds. So my
> question is, do Purple finch as well as other reddish birds, get their reddish
> plumage from eating these red flowers? I know Flamingos require foods with red
> in them to get their pink coloring, so could the bright red flowers of the Red
> Maple contribute to the bright reds of the Purple finch?
> Paul Carrier - Harwinton
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