- (1991). Forshaw,
Joseph (ed.).
Encyclopaedia of Animals: Birds. London:
Merehurst Press. pp. 186–187. ISBN 1-85391-186-0. Rafinesque,
Constantine Samuel...
- Lumpkin, S. (1991).
Great Cats,
Majestic Creatures of the Wild. London:
Merehurst. ISBN 9781853911897.
Wikimedia Commons has
media related to
Acinonyx jubatus...
- (1991). Forshaw,
Joseph (ed.).
Encyclopaedia of Animals: Birds. London:
Merehurst Press. p. 180. ISBN 1-85391-186-0. Golawski, A.; Mroz, E.; Golawska, S...
- (1991). Forshaw,
Joseph (ed.).
Encyclopaedia of Animals: Birds. London:
Merehurst Press. pp. 118–124. ISBN 978-1-85391-186-6. OCLC 24733108. Tweti, Mira...
- (1991). Forshaw,
Joseph (ed.).
Encyclopaedia of Animals: Birds. London:
Merehurst Press. pp. 202–203. ISBN 1-85391-186-0.
Gosler &
Clement (2007) P.669...
- (1991). Forshaw,
Joseph (ed.).
Encyclopaedia of Animals: Birds. London:
Merehurst Press. pp. 47–48. ISBN 1853911860.
BirdLife International (2012). "Greater...
- (1991). Forshaw,
Joseph (ed.).
Encyclopaedia of Animals: Birds. London:
Merehurst Press. pp. 103–105. ISBN 1-85391-186-0. Rafinesque,
Constantine Samuel...
- (1991). Forshaw,
Joseph (ed.).
Encyclopaedia of Animals: Birds. London:
Merehurst Press. pp. 115–116. ISBN 978-1-85391-186-6. "Species
Extinction Time Line...
- (1991). Forshaw,
Joseph (ed.).
Encyclopaedia of Animals: Birds. London:
Merehurst Press. pp. 134–136. ISBN 1-85391-186-0. Martins, Thais; Mead, Christopher...
- (1991). Forshaw,
Joseph (ed.).
Encyclopaedia of Animals: Birds. London:
Merehurst Press. p. 109. ISBN 1-85391-186-0. "Antarctica's Milk-Stealing, Grudge-Holding...
