Wild Wednesday: American Avocet

I was so happy to see that the Avocets have returned after spending the winter in Mexico.  He or she is in breeding plumage, the only way I've ever seen them.  In the winter they are black and white.  Guessing the gender is difficult because the only difference is that the female has a shorter more upcuved bill.  Even in my other shots where there are more of them, their bills are very similar.  Maybe someone knows a better way to tell??