Pycroft's Petrel vs Fairy Prion

Pycroft's Petrel and Fairy Prion can be distinguished by their wing patterns and habitat preferences. Pycroft's Petrel has a more uniform gray upperpart, while Fairy Prion features a distinctive black diagonal band across its wings. Both species are pelagic, but Fairy Prion is more likely to be found in temperate waters post-breeding.

Look for the black diagonal wing band on the Fairy Prion, which is absent in Pycroft's Petrel. Consider the location: Fairy Prion is more likely in temperate waters outside the breeding season.

Pycroft's Petrel has uniform gray upperparts, whereas the Fairy Prion is noted for a black band that stretches diagonally from the leading edge of the primaries across its wings.

Pycroft's Petrel is typically found in oceanic environments, while Fairy Prion, after breeding, moves north into temperate and subtropical waters.