The herring / lesser black back gull group has a ring distribution around the northern hemisphere. Differences between adjacent forms in the ring are fairly small but by the time the circuit is complete the end members- herring & l.b.b gull are clearly different species. For more see the excellent book "The ancestors tale " by Richard Dawkins, or wikipedia, also evolutionfairytale or Talkorigins
The herring / lesser black back gull group has a ring distribution around the northern hemisphere. Differences between adjacent forms in the ring are fairly small but by the time the circuit is complete the end members- herring & l.b.b gull are clearly different species. For more see the excellent book "The ancestors tale " by Richard Dawkins, or wikipedia, also evolutionfairytale or Talkorigins
zytigon 3 months ago
These birds are smart. I have one that taps on my window for food. Take a look at my video.
bagdan18 7 months ago
Is it trying to simulate rain?
alexthegardener 2 years ago