For all you birders out there, how do you tell the difference between the drake and hen black-bellied whistling ducks ?

My friend down in Texas has 6 on his pond for a few years, although they've never had little ones. His Woodies are successful.

www.hoosierpondpros.com

[Linked Image from lh6.ggpht.com]
http://www.pondboss.com/subscribe.asp?c=4
3/4 to 1 1/4 ac pond LMB, SMB, PS, BG, RES, CC, YP, Bardello BG, (RBT & Blue Tilapia - seasonal).