Update: A reader in the know has identified this bird spotted today in Central Park Square as a ring-billed gull, adding that it is ‘a fairly common species in New Mexico. The mantle on a black-tailed is much darker, and the entire end of the bill is dark (with red at the tip). They are extremely rare in North America. Black-tailed has only been found in NM once before, a brief 2-day period at Brantley Lake in August 2008.’ Photo by Michelle Stallings