Starlings and blackbirds might be the usual suspects but rooks are often the species to blame, particularly on pears. This year, according to UAP fruit specialist David Skittrall, rook damage on pears is the worst he has seen.
Despite speculation about why this is the case, so far no explanation seems to fit all the facts. But because the pear crop is significantly reduced, this bird damage is very unwelcome. However, according to Skitterall, bird scarers using species-specific alarm calls can help to prevent attacks.