"Details of Engyptila albifrons (White-fronted Dove); head and foot natural size; wing and tail reduced.
"Fig 181 - Generic details of Hirundo horreorum(Barn Swallow) Deep lustrous steel-blue; forehead and…
"Hirundo horreorum. Barn Swallow. Tail deeply fornicate, nearly or about as long as the wings; lateral…
"Sterna forsteri. Forster's Tern. Tail 5.00 - 8.00, forked 2.50-5.00." Elliot Coues, 1884