a. (top): Lanius collurio = Lanius collurio Linnaeus, 1758
b. (bottom left): Paradisea raggiana [sic] = Paradisaea raggiana P.L. Sclater, 1873
c. (bottom right): Gymnorhina organicum = Gymnorhina tibicen hypoleuca Gould, 1837
English: Skulls of Red-backed Shrike (top), Raggiana Bird-of-paradise (bottom left) and Tasmanian White-backed Magpie (bottom right) from ventral, lower jaw removed. a.o.p. = antorbital process, mx.p. = maxillo-palatine process, n.s. = nasal septum, pa. = palatine bone, pt. = pterygoid bone, vo. = vomeral bone.
Date 1907
Source Proceedings of the Zoological Society of London (vol. 1907 issue 2, page 362)
Author W.P.Pycraft (text) - William Plane Pycraft (1868 – 1942)
Source: https://commons.wikimedia.org/wiki/File:PZSL1907Page363.png

The red-backed shrike (Lanius collurio) is a carnivorous passerine bird and member of the shrike family Laniidae.

The Raggiana bird-of-paradise (Paradisaea raggiana), also known as Count Raggi's bird-of-paradise, is a large bird in the bird-of-paradise family Paradisaeidae.

The Australian magpie (Cracticus tibicen) is a medium-sized black and white passerine bird native to Australia and southern New Guinea. Described as one of Australia's most accomplished songbirds, the Australian magpie has an array of complex vocalisations.