How do you know the difference between a female and male crow?
The plumage of both sexes is alike. Size is usually only helpful with extreme specimens: males with wings longer than 335 mm; females with wings shorter than 300 mm. However, there is quite considerable overlap. Overall males tend to be slightly larger than females. But usually it is the behaviour towards other crows and the other gender, which provides useful information. For our crows here in the UK territorial displays, postures and vocalisations can give important clues, as males are dominant over females. Territory holding males can hold a territory by their own without having a female partner, but a female by her own will loose her territory, when the partner passes away.