Spring time just began and I was filming Wren, which was alarming and feeding on the bank of river in bushes. Suddenly I noticed two stones with completely the same shape and color which, I was sure, there were not at that place just five minutes ago! As you guess, they were pair of Grey partridges (Perdix perdix) with perfect camouflage) Bank of Nioman river in Hrodna city, W Belarus, 09-03-2023 Several pictures and full story in Belarusian are here: https://birdwatch.by/gallery/harrier/garadzkoe-zhyccyo-sherykh-kurapatak-chastka-iii-zhyvyya-kamyani Некалькі здымкаў і гісторыя пра пару шэрых курапатак у вясновым горадзе па-беларуску тут: https://birdwatch.by/gallery/harrier/garadzkoe-zhyccyo-sherykh-kurapatak-chastka-iii-zhyvyya-kamyani