xuky.summer
Well-known member
I saw several small groups of Tundra Swan today, and I found that the color of their necks was different. The small group was gray and white, while the other group was yellow or brown. At first, I thought it was due to age difference, but after looking at the photos, I found it was not. Is this group of Tundra Swan with colored necks stained by water or are there regional variations? Shandong province.
Thank you!
Thank you!