[image] Biggest peeve among naturalist Also I thought about another one - calling birds and mammals leucistic while there’s no such genetical condition for the groups. And also denying that they’re albino only because they don’t have pink eyes. Ok, that I have a problem with because there is a…

[image] Biggest peeve among naturalist there’s no such genetical condition for the groups Can you explain this, please?

I linked the post in the next message, you can read about it there.

It’s a fact that no mutation in birds called leucism, as well as mammals, the term is known from non-bird reptiles and it’s not fully understood right now what causes the condition (it can appear to be a known mutation).

[image] marina_gorbunova: no mutation in birds called leucism Can you provide some kind of bibliography about this? https://www.audubon.org/news/why-bird-half-white

The link has it, and as I remember your link was discussed in group, I know that Audubon society uses the term, though it’s still wrong, at least in a scientific, genetical way. I can check for more links when I’ll get back home.

I only saw your link to facebook after my reply. I would still appreciate if you provide some more info about this matter. Thank you.

https://sciencemadefun.net/blog/leucism-vs-albinism/ https://en.wikipedia.org/wiki/Leucism https://www.mnn.com/earth-matters/animals/blogs/whats-the-difference-between-albino-and-leucistic https://feederwatch.org/color_variant/albinism-and-leucism/ http://www.birds.cornell.edu/ivory/pastsearches…

“Albinistic birds have pink eyes because without melanin in the body, the only color in the eyes comes from the blood vessels behind the eyes.” Do you realise how wrong this is?

Albinism and leucism

Nature Talk

marina_gorbunova December 17, 2019, 4:15pm 2

I like this post explaining why leucism can be a misleading term. https://www.facebook.com/groups/387147351626014/permalink/950092765331467/

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Albinism and leucism

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