why do birds dont fall off while they were sleeping?

@timuss (474)
February 16, 2007 10:33am CST
dp they infact sleep?
1 response
@hcromer (2710)
• United States
16 Feb 07
Yes birds do sleep and no they do not fall off... If you would like to read more about it you can check it out at this website: http://www.wild-bird-watching.com/birds_sleep.html