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"Blue" underside

Posted: Sun Aug 21, 2022 8:11 pm
by SimonC69
Hi people. I'm hopeless at IDing certain Blues from underside only shots, some help with this one (with pointers to help me in future) would be appreciated
Taken 20th August on a site with both Adonis and Chalkhill Blues on the wing.

TIA.

Re: "Blue" underside

Posted: Sun Aug 21, 2022 10:18 pm
by bugboy
Well from that angle it has a 50% chance of being either, for me the only clue is the date. Being fresh in August this year moves the percentage to perhaps 70-80% Adonis (assuming the Chalkhills on this site were as early as they were on the ones I visited this year.)

Re: "Blue" underside

Posted: Mon Aug 22, 2022 1:38 pm
by SimonC69
Well, from what I could see, tha Adonis outnumbered Chalkhill by about 6-1 so that would make sense. Cheers