The limiter switch on my 400 DO has two positions, 3.5 and 8 meters. I was inside the 8 meter limit. Usually, these birds are pretty shy but the location where I found this one is man-made lake in a public park on Tucson, Arizona's west side. Periodically, the lake is stocked with fish and that attracts both wading birds and fishermen. They coexist amicably, the fishermen don't bother the birds and the birds get very used to people. So, it's an ideal place to photograph ducks and wading birds, including Great Blue Herons, Great Egrets, Black Crowned Night Herons, and Neotropic Cormorants.