i wish i was joking but i just watched two of them do it

I don't remember if the new AI to avoid this was added to Cockatrices yet, but if not, it should fix this.

Appears to be an issue of flying mobs overshooting their targeted block due to slowfall, so when targeting a block on the edge of islands they'll just fly off and not know what to do.

I should make a general AI task to use for all aether ground mobs that just makes sure they navigate away from the edge of islands similar to how animals avoid water.