measurements in Proceedings of the Boston Society of Natural History. Taken from the Society's Records

measurements American.Millimetres.European.Bill along ridge.....4957“ “ gape...6475From the nostril to the point of the bill.3641Length of lower mandible along the centre, (measuring to the feathers,).4147Length of do. do. along the side, do. do.5162Width of bill at commencement of feathers..87½Depth of do. do. do....11¼12½Length of wing from flexure.290317Length of tail to tips of lateral feathers136149Length of tarsus.....2528Middle toe without the claw.1821Middle claw...7½9Inner toe with claw...1720Outer do. do.....2126.l llull Thumb....6½8½