The study was carried out between 2000 and 2002 in a semi-evergreen forest in the south-western portion of the Mudumalai Wildlife Sanctuary, India. A total of 81 cavities in 19 tree species were used for nesting by Malabar Grey Hornbills during the study. Three tree species: Lagerstroemia microcarpa, Terminalia bellirica and T. crenulata together made up 69% of all the nest trees used. The mean height of the nest trees was 36 ± 6 m, girth at breast height 3 ± 1 m and nest height 17 ± 6 m. 35 (67%) nest holes were re-used in 2001 while 21 (40%) nest holes were re-used in 2002. Terminalia crenulata was the tree re-used most often. Nest fidelity by the Malabar Grey Hornbill was reduced owing to competition by other cavity users.
REFERENCES
K. Anggrainy
,
M. Kinnaird
,
T. O'Brien
2000. The effects of fruit availability and habitat disturbance on an assemblage of Sumatran Hornbills. Bird Conserv. Intern. 10: 189–202. Google Scholar
E. C. S. Baker
1927. Fauna of British India. Birds. 2nd Edition. Vol. IV. Taylor & Francs, London. Google Scholar
P. Balasubramanian
,
B. Maheswaran
2002. Studies on the hornbill tree interactions with special reference to identification and conservation of “keystone mutualists” in Nilgiri Biosphere Reserve. Project Report. Salim Ali Centre for Ornithology and Natural History, India. Google Scholar
A. J. Cahill
,
J. S. Walker
2000. The effects of forest fire on the nesting success of the Red-knobbed Hornbill Aceros cassidix. Bird Conserv. Intern. 10: 109–114. Google Scholar
H. G. Champion,
S. K. Seth
1968. A revised survey of the forest types of India. New Delhi. Google Scholar
V. Gokula
,
L. Vijayan
1996. Birds of Mudumalai Wildlife Sanctuary, India. Forktail 12: 143–152. Google Scholar
S. A. Hussain
1984. Some aspects of the biology and ecology of Narcondam Hornbill (Rhyticeros narcondami). J. Bombay Nat. Hist. Soc. 81: 1–18. Google Scholar
A. D. Johns
1982. Observations on nesting behaviour in Rhinoceros Hornbill, Buceros rhinoceros.
Malay Nat. Hist. J. 35: 173–177. Google Scholar
A. C. Kemp
1976. A study of the ecology, behaviour and systematics of Tockus hornbills (Aves: Bucerotidae). Transvaal Mus. Memoir 20. Google Scholar
A. C. Kemp
1978. A review of the hornbills: biology and radiation. Living Bird 17: 105–136. Google Scholar
M. Leighton,
N. Wirawan
1986. Catastrophic drought and fire in Borneo tropical rainforest associated with the 1982–1983 El Nino Southern Oscillation event. In: Tropical rain forests and the world atmosphere. Amer. Assoc. Advancement of Sci. Westbury Press, pp. 75–102. Google Scholar
P. Li
,
T. E. Martin
1991. Nest-site selection and nesting success of cavity nesting birds in high elevation forest drainages. Auk 108: 405–18. Google Scholar
S. G. Madge
1969. Notes on the breeding of the Busy-crested Hornbill. Anorrhinus galeritus.
Malay Nat. hist. J. 23: 1–6. Google Scholar
S. J. Marsden
,
M. J. Jones
1997. The nesting requirements of the parrot and hornbill of Sumba, Indonesia. Biol. Conserv. 82: 279–287. Google Scholar
D. Mudappa
2000. Breeding biology of the Malabar Grey Hornbill (Ocyceros griseus) in southern Western Ghats, India. J. Bombay Nat. Hist. Soc. 97: 15–24. Google Scholar
D. C. Mudappa
,
R. Kannan
1997. Nest-site selection by the Malabar Grey Hornbill (Ocyceros griseus) in southern Western Ghats, India. Wilson Bull. 102: 111–119. Google Scholar
P. Poonswad
1995. Nest site characteristics of four sympatric species of hornbills in Khao Yai National Park, Thailand. Ibis 137: 183–191. Google Scholar
P. Poonswad,
A. Tsuji,
R. Liewviriyakit,
N. Jirawatkavi
1988. Effects of external factors on hornbill breeding and population. In:
B. L. Dresser,
R. W. Reece,
E. J. Maruska (eds).
Proc. 5th World Conf. Breeding Endangered Species in Captivity. Cincinnati Zoo and Botanical Garden Center, Cincinnati, pp. 523–545. Google Scholar
P. Poonswad,
A. Tsuji,
C. Ngampongsai
1987. A comparative study on breeding biology of sympatric hornbill species (Bucerotidae) in Thailand with implications for breeding in captivity. In:
P. Poonswad (ed.).
Proc. Symp. Breeding Birds in Captivity. Int. Found. Conserv. Birds. North Hollywood, pp. 250–315. Google Scholar
K.S. Varman
1993. Mudumalai Wildlife Sanctuary. In:
J. C. Daniel,
H. S. Datye (eds).
A Week with the Elephants. Proc. Int. Seminar Conserv. Asian Elephant. Oxford Univ. Press, New Delhi, pp. 7–17. Google Scholar
