nostr:npub19wfkrry8tj9gmrq4pxkqqxyzgyqfu3xunpseghv6d4gz50g4pv0sdzufh6 We have male cardinals, in particular, get aggressive in the spring and throw themselves against windows. I too thought my dog had secret skills for bird catching ... until I went out first in the morning and there are birds on the deck from window strikes.