I need help identifying gender and behavior

Hey guys, I’m back again ! I believe ash the white Muscovy is a female , she flies over the fence daily and comes back in 30 mins , but I’m not understanding her body language and or the noise she is making !!! Is she mad or happy and lastly the green Muscovy doesn’t fly over the fence and I caught her/him mounting one of the Pekins in the pond … the green one named Max isn’t as chatty as Ash either but Is small like a female . I finally got to uploading a video with sound but I’m still unsure of the gender of Max ps, max is about 4 months older than ash “estimated”.