#6 - American Black Duck - probably a female with her dirty green beak. Dark eyeline, head and body dark - a female Mallard in gothic dress
#7 - Blue-winged Teal - the give-away head of this preening male is hidden, as is the dark bill, but the blue wing should be all the clue that is needed. Note yellow legs.
#8 - Gadwall, female - She has an orange bill with dark on top, barely a suggestion of an eyeline, a hint of the white speculum, a generally plain brown head and body, and a sweet look.
#9 - Mottled Duck - prominent eyeline like a female Mallard, but a much lighter, gray head, no black on top of bill. The close relationship to Mallard and black duck is evident in this Florida and southern species.
#10 - Northern Pintail, female - no sinuous neck on this hen, but the rather uniform brown head is the clue to her identity, plus mottled body and dark beak.