No, we hadn't seen them here before, but another person had seen them earlier in the year and reported them on eBird but said they flew off when they saw them. Amazing how they have come back again. They sure are beautiful ducks.
@BrianLR I’ll upload the best ventral surface picture I have… it’s not great, but maybe you’ll know? I heard the signifera call, but did not witness it coming from this exact frog.. I just heard it nearby, then found this frog.