how do birds reproduce?

[Zachary]

i have always wondered this for so long. they dont have genitalia like mammals, they dont have liquid to release their sex cells into like fish do, so...how does it happen?
also, is there any copulation involved? is there is, how?
if you dont know, copulation is the act of sex itself.
serious answers please...

[Robert]

Check it out. It's like people but not (sperm and egg only). Marge Cut... gave a very good description of the process on April 30, 2007 I couldn't say it any better. The Times article gives a good description, also. Different birds have deviations of the process like chickens have spurs, ducks have a long cord, but they all do what is called a 'Cloaca Kiss'.

http://answers.yahoo.com/question/index?qid=20080208202700AAPGx5u

another desciption:

http://www.nytimes.com/1998/09/22/science/q-a-avian-intercourse.html

p.s. Freaky Deky fact.-- Oddly, humans which have a temporary cloaca during pregancy within the fetal sac, normally excreted within our species as afterbirth, on occassion are born with a permanent cloaca.