Analysis of regurgitated pellets of Spotted Owlet Athene brama (Temminck, 1821) (Aves: Strigiformes: Strigidae) from Punjab, India

Main Article Content

Renuka Malhotra
http://orcid.org/0000-0001-6564-1763
Neena Singla
http://orcid.org/0000-0002-2078-475X

Abstract

The present study was conducted to determine the diet of Spotted Owlet Athene brama.  Analysis of 200 regurgitated pellets collected from eight different locations in Punjab (India) determined average weight, length, breadth and thickness to be 1.0g, 27.0mm, 16.0mm and 12.0mm, respectively.  Remains of a total 433 individual prey were found in these pellets.  Diet of Spotted Owlet consisted of both vertebrates (45.7%) and invertebrates (54.3%).  Among vertebrates, mice (45.0%) were predominant, followed by frogs (0.5%) and birds (0.2%). Among invertebrates, diet mainly consisted of insects (53.8%) followed by molluscs (0.5%).  Insects preyed upon by Spotted Owlet were predominantly of orders Coleoptera (34.9%), followed by Orthoptera (10.2%), Dermaptera (7.9%) and some unidentified orders (0.9%).  The remnants of insects and molluscs in the pellets comprised of wings, legs, head, shells etc.  The average number of mice consumed per pellet was 1.32, with a maximum capacity of consuming up to five mice per night. 

 

Article Details

How to Cite
[1]
Malhotra, R. and Singla, N. 2018. Analysis of regurgitated pellets of Spotted Owlet Athene brama (Temminck, 1821) (Aves: Strigiformes: Strigidae) from Punjab, India. Journal of Threatened Taxa. 10, 6 (May 2018), 11717–11724. DOI:https://doi.org/10.11609/jott.4020.10.6.11717-11724.
Section
Communications
Author Biographies

Renuka Malhotra, Department of Zoology, Punjab Agricultural University, Ferozepur Road, Ludhiana, Punjab 141004, India

Ms. Renuka Malhotra completed her Master’s Programme from Department of Zoology, Punjab Agricultural University (PAU), Ludhiana, Punjab and has recently joined as Assistant Professor, Khalsa College for Women, Ludhiana, Punjab.

Neena Singla, Department of Zoology, Punjab Agricultural University, Ferozepur Road, Ludhiana, Punjab 141004, India

Dr. Neena Singla is serving as Senior Zoologist (Rodents) in the Department of Zoology, PAU, Ludhiana, Punjab. She has more than 20 years experience in research, teaching and Extension. She is Project Incharge, All India Network Project on Vertebrate Pest Management (Rodent Control) at PAU, Ludhiana. Her major emphasis is on development of alternative, safe and environment friendly techniques for integrated rodent pest management. 


References

Ali, A.M.S. & R. Santhanakrishnan (2012). Diet composition of the Barn Owl Tyto alba (Aves: Tytonidae) and Spotted Owlet Athene brama (Aves: Strigidae) coexisting in an urban environment. Podoces 7(1/2): 21–32.

Ali, S. & S.D. Ripley (1987). Compact Handbook of the Birds of India and Pakistan. 2nd Edition. Oxford University Press, Bombay, India, 737pp.

Hardy, A.R. (1977). Hunting ranges and feeding ecology of owls in farmland. PhD Dissertation. University of Aberdeen, Aberdeen, UK.

Majumdar, N. (1984). A Collection of Birds of Adilabad District, Andhra Pradesh. Records of the Zoological Survey of India, Occassional Paper No. 65, 6–27pp.

Mittal, P.K. (1997). Studies on some aspects of ecology of the Spotted Owlet Anthene brama (Temminck). MSc Thesis. Punjab Agricultural University, Ludhiana, India, 75pp.

Nadeem, M.S., S.M.K. Imran, T. Mahmood, A.R. Kayani & S.I. Shah (2012). A comparative study of the diets of Barn Owl (Tyto alba) and Spotted Owlet (Athene brama) inhabiting Ahmadpur East, Southern Punjab, Pakistan. Animal Biology 62: 13–28; http://doi.org/10.1163/157075511x597593

Naranthiran, G. (1989). Ecology of southern Spotted Owlet Athene brama (Temmimck) in Thanjavur District, Tamil Nadu with special reference to its food and ecotoxicity. MPhil Thesis. Bharathidasan University, Thiruchirappalli, India.

Neelanarayanan, P., R. Nagarajan & R. Kanakasabai (1998). Studying diet of Barn Owl (Tyto alba stertens) by pellet analysis. Proceedings of 1st National Symposium of Birds in Agricultural Ecosystem, ANGR Agricultural University, Hyderabad, India, 125–131pp.

Pande, S. & N. Dahanukar (2011). The diet of Indian Eagle Owl Bubo bengalensis and its agronomic significance. Journal of Threatened Taxa 3(8): 2011–2017; http://doi.org/10.11609/JoTT.o2536.2011-7

Pande, S., A. Pawashe, D.B. Bastawade & P.P. Kulkarni (2004). Scorpions and molluscs: some new dietary records for Spotted Owlet Athene brama in India. Ornithology Newsletter 1(5): 68–70.

Pande, S., A. Pawashe, M.N. Muralidhar, C. Joglekar & A. Mahabal (2007). Effect of food and habitat on breeding success in spotted owlets (Athene brama) nesting in villages and rural landscapes in India. Journal of Raptor Research 41(1): 26–34.

Paunikar, S., S.S. Talmale & D. Gupta (2015). Food habits of Spotted Owlet Athene brama (Temminck, 1821) in the campus of Tropical Forest Research Institute, Jabalpur: an ecological representation of central India. Ambient Science 2(1): 9–15.

Sandhu, H.S. (1978). The ecological studies on birds in the vicinity of Airfield, Halwara. MSc Thesis. Punjab Agricultural University, Ludhiana, India.

Shehab, A.H. (2005). Food of the Barn Owl Tyto alba in southern Syria. Acta Zoologica Cracoviensia 48(1–2): 35–42.

Smith, C.R. & M.E. Richmond (1972). Factors affecting pellet egestion and gastric pH in the Barn Owl. Wilson Bulletin 84: 179–186.

Sridhara, S. (1981). Owls of Bangalore. Indian Wildlife 1(4): 10–13.

Talmale, S.S. & M.S. Pradhan (2009). Identification of some small Mammal species through Owl Pellet Analysis. Records of the Zoological Survey of India, Occasional paper no. 294, 1–44pp.

Taylor, I.R. (1994). Barn Owl: Predator-Prey Relationships and Conservation. Cambridge University Press, Cambridge, England, 311pp.

Yalden, D.W. (2003). The Analysis of Owl Pellets (Mammal Society Occasional Publication). The Mammal Society, London.

Zade, V., V. Thakare & P. Chirde (2011). Prey Preferences of Spotted Owlet Athene brama in G.V.I.S.H. Campus, Amravati, Maharashtra, India. Middle-East Journal of Scientific Research 10(3): 410–413.