Anthus hodgsoni -- Olive Tree-Pipit, Olive-backed Pipit. Alternate name on piece: Pipastes agilis [Indian tree-pipit] Layout drawing, birds well finished; sheet has been folded so that it would be possible to isolate each of the birds for purposes of composition (in fact the layout of the drawing was retained for publication); 3 notes on color and form; "one specimen"; large letter B. Artist's name(s): Gould, John; Richter, Henry Constantine.