2 ms·

Can't fly?

• jelliclesfarm 7y ago
  Sorry. My bad. I guess..I meant..a bird in the water is vulnerable and ‘grounded’ to one that can swoop down and fly away and attack as a mob.
• tialaramex 7y ago
  For many birds, including crows, take off is almost instant. Flap wings, lift exceeds gravity, up you go. Swans don't do that, I presume because they can't. They need a considerable run-up - call it 50 metres on land. If harried it may be impossible for the swan to fly away.