the anhinga has poor insulation against the cold, confining it to mostly tropical and subtropical latitudes

anhinga attracting bayou below bill bird birds breeding brief colonies cormor cormorant cormorants country crane curious disturbance dive eagle egret egrets everglades feathers feet fish fishing flight fly flying freshwater habitat hawk head heron ibis ibises lake louisiana low mammals marine marsh mixed mixture molts neck perching period plumage plummets predator prey range river seabird seems sensitive shallow snake spear spreads submerged swamp threatened tolerates unable underwater vegetation water wetlands wings