Small tortoiseshell popped onto the bird table for a minute before fluttering away.. Paul.
Jul 13, 2022 #1 Paul Iddon Moderator Small tortoiseshell popped onto the bird table for a minute before fluttering away.. Paul.
Jul 13, 2022 #2 Asher Kelman OPF Owner/Editor-in-Chief Interesting difference in the radiance of the wings in the two pictures. Any idea why? Asher
Jul 13, 2022 #3 Paul Iddon Moderator Asher Kelman said: Interesting difference in the radiance of the wings in the two pictures. Any idea why? Asher Click to expand... The dorsal surface of the wings is vividly marked, the ventral surface is drab, providing camouflage. Nature's design I suppose.
Asher Kelman said: Interesting difference in the radiance of the wings in the two pictures. Any idea why? Asher Click to expand... The dorsal surface of the wings is vividly marked, the ventral surface is drab, providing camouflage. Nature's design I suppose.
Jul 13, 2022 #4 Asher Kelman OPF Owner/Editor-in-Chief Asher Kelman said: Interesting difference in the radiance of the wings in the two pictures. Any idea why? Asher Click to expand... Thanks, so the underside of the wings are drab: as camouflage! But these butterflies are in serious decline , due to accumulation of minerals and other chemicals in bodies of water they depend on).
Asher Kelman said: Interesting difference in the radiance of the wings in the two pictures. Any idea why? Asher Click to expand... Thanks, so the underside of the wings are drab: as camouflage! But these butterflies are in serious decline , due to accumulation of minerals and other chemicals in bodies of water they depend on).
Jul 13, 2022 #5 Paul Iddon Moderator I think many are in decline. I see fewer of any species nowadays. Paul.