The karner blue butterfly is a federally endangered ... their eggs only on milkweed plants in late spring. The northern pearly-eye butterfly is hard to find, as only 23 were counted in 2020.
Hosted on MSN6mon
'Concerning' decline in NI's butterfly numbersThe Common Blue and Green-veined White also had ... A major report last year found many butterfly species in Northern Ireland were in serious decline.
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