Dusky Seaside Sparrow

tags: Dusky Seaside Sparrow, Ammodramus maritimus nigrescens, Joel Sartore, National Geographic, image of the day The world in a jar: Is this the sort of world we wish to leave to our children? Dusky Seaside Sparrow (Ammodramus maritimus nigrescens). Extinct. Image: Joel Sartore/National Geographic [larger view]. The photographer writes; Slipping into extinction almost unnoticed, the Dusky Seaside Sparrow, Ammodramus maritimus nigrescens -- found mainly on Florida's Merritt Island -- declined from roughly 3,000 pairs to none as its salt marsh habitat was sprayed with DDT and taken over for…