Seen on the recent and excellent Birdfinders spring tour of Texas, two Masked Ducks on Alligator Pond, Laguna Atascosa NWR. We showed up in late afternoon hoping to see a single Masked Duck that had been reported on periodic basis from tiny Alligator Pond. It was certainly a sweet moment two birds swam in to view and began consorting with each other with audible gasps and 'wows' from our assembled group. The birds also showed rather marked plumage differences, one being smaller, darker and more densely patterned than the larger paler breasted bird. I haven't been able to find out much information on the ages of Masked Ducks but it seems plausible that the smaller darker bird was an adult female and the larger, paler bird a first-year male. These birds put on a fine show contrary to their ultra-skulking reputation, and instantly became a strong candidate for bird of the trip.