Geese, Ducks? Help

[cherokeeruby]

Can anyone tell me what these birds are. In flight the underside of their wings is white.

 

[Arnold Ziffle]

Ruby, I believe those are Black Bellied Whistling Ducks --- sometimes confused with Mexican Squealer ( Fulvous Tree Duck). Have had them in my pond for a number of years.

http://www.wildtexas.com/wildguides/whistlingduck.php

 

[cherokeeruby]

Thanks for the link.