21. Chrysoptilus kirkii - Malh.: Novr. 1847. Collection: Hill Ornithology Collection Date: 1848 Format: Image Creator: Strickland, Catherine Dorcas Maule Jardine (Scottish naturalist and illustrator specializing in ornithological illustrations and identification, 1825-1888)
22. 3/4: Cyanocitta yucatanica: J.G. Keulemans lith.: Hanhart imp. 137 Collection: Hill Ornithology Collection Date: 1879 Format: Image Creator: Keulemans, Johannes Gerardus (Dutch painter and printmaker, 1842-1912, active in England) Engraver: J.G. Keulemans
23. Pitylus Celæno.: J.G. Keulemans lith.: Hanhart imp. 138 Collection: Hill Ornithology Collection Date: 1879 Format: Image Creator: Keulemans, Johannes Gerardus (Dutch painter and printmaker, 1842-1912, active in England) Engraver: J.G. Keulemans
24. Trochilus Anna: Lizars sc. Collection: Hill Ornithology Collection Date: 1833 Format: Image Creator: Lear, Edward (British painter, printmaker, and author, 1812-1888) Engraver: Lizars, William Home
25. Ceriornis melanocephala: J. Wolf & J. Smit del et lith.: M&N Hanhart, Imp. Collection: Hill Ornithology Collection Date: 1872 Format: Image Creator: Wolf, Joseph (German painter, illustrator, and lithographer, 1820-1899, active in Britain), ... Engraver: Joseph Smit, ...
26. Anatra d'estate. - Anas estiva.: All'Illmo: Sigre: Dottore Orazio Traversari Medico a Cervia. Collection: Hill Ornithology Collection Date: 1765-1776 Format: Image Creator: Vanni, Violanta (Italian printmaker and graphic artist, ca. 1732-1776), ...
27. Platyrhynchus cancromus. fem.: Short-tailed Flatbill Collection: Hill Ornithology Collection Date: 1820 Format: Image Creator: Swainson, William (British painter, draftsman, and illustrator, 1789-1855)
28. Trochilus falcatus: Sickle-winged Humming Bird Collection: Hill Ornithology Collection Date: 1820 Format: Image Creator: Swainson, William (British painter, draftsman, and illustrator, 1789-1855)
29. Pteroglosus sulcatus: Grooved-bil Aracari Collection: Hill Ornithology Collection Date: 1820 Format: Image Creator: Swainson, William (British painter, draftsman, and illustrator, 1789-1855)
30. Black-masked Tanager: R.Nigro-gularis Collection: Hill Ornithology Collection Date: 1841 Format: Image Creator: Swainson, William (British painter, draftsman, and illustrator, 1789-1855)