male or female?

[fishnet1971]

my one does the ' quack quaaaack quacccccckkkkkk' that i hear on the local ponds call. thinking female? the one says nothing, still almost peeps (the high pitch peep peeepp and yes, rhaspy) and the third does absolutley nothing that i have been able to catch. Just looks at me sidways and gives me a devilish grin before he/she poops on my foot.