Mexican Duck
Anas diazi
The bird has a length of 45–55 cm (17.7–21.6 in) and a weight of 849–1,243 g (1.872–2.740 lb) The Mexican duck is mainly brown, with a blue speculum edged with white, obvious in flight or at rest. The male has a brighter yellow bill than the female.
ID text from Wikipedia, CC BY-SA 4.0
Red-billed Teal
Anas erythrorhyncha
The red-billed teal is 43–48 cm (17–19 in) long and has a blackish cap and nape, contrasting pale face, and bright red bill. The body plumage is a dull dark brown scalloped with white. Flight reveals that the secondary flight feathers are buff with a black stripe across them. The sexes are similar, but juveniles are duller than adults. This is a quiet species, but the displaying male has a whzzt call, whereas the female has a soft mallard-like quack. The red-billed teal is a bird of freshwater habitats in fairly open country and is an omnivore.
ID text from Wikipedia, CC BY-SA 4.0
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