RF2X40YHC–Fox sparrow (Passerella iliaca) guards its nesting territory from competing passerines in this image taken near McNeil Lagoon in Southwest Alaska
RF2X40YHK–Fox sparrow (Passerella iliaca) watches over its nesting territory for competing passerines in this image taken near McNeil Lagoon in Southwest Alaska
RF2X40YHP–Fox sparrow (Passerella iliaca) sings a warning to guard its nesting territory from competing passerines in this image taken near McNeil Lagoon in ...
RF2X40YE4–Fox sparrow (Passerella iliaca) stands on alert near its nest near Kamishak Bay, Alaska, in early June; Alaska, United States of America
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