1. Aggarwal, S., Sahi, D.N. and Wani, A., 2008. Feeding guilds of avifauna of Nandni Wildlife Sanctuary, Jammu (Jammu and Kashmir). The Ecoscan, pp.157-160.
2. Ali, S. and Ripley, S.D., 2007. Handbook of the birds of India and Pakistan, Oxford University press, New Delhi, Vol. 2.
3. Ashwini, R. and Vijaya Kumara, 2023. Status, Diversity and Conservation of Avifauna at Turahalli Minor Forest, Bangalore, Karnataka, India. Advances in Zoology and Botany, 11(4), pp.257-269. https://doi.org/10.13189/azb.2023.110403
4. Azman, N.M., Latip, N.S.A., Sah, S.A.M., Akil, M.A.M.M., Shafie, N.J. and Khairuddin, N.L., 2011. Avian Diversity and Feeding Guilds in a Secondary Forest, an Oil Palm Plantation and a Paddy Field in Riparian Areas of the Kerian River Basin, Perak, Malaysia. J Trop. Life Sci. Res, 22(2), pp.45-64.
5. Balestrieri, R., Basile, M., Posillico, M., Altea, T., de Cinti, B. and Matteucci, G., 2015. A guild-based approach to assessing the influence of beech forest structure on bird communities. Forest Ecology and Management, 356, pp.216–223. https://doi.org/10.1016/j.foreco.2015.07.011
6. Bibby, C.J., Burgess, N.D., Hill, D.A. and Mustoe, S.H., 2000. Bird census techniques. 2nd edition. Academic Press, London.
7. Bonilla, E.P.D., León-Cortés, J.L. and Rangel-Salazar, J.L., 2012. Diversity of bird feeding guilds in relation to habitat heterogeneity and land-use cover in a human-modified landscape in southern Mexico. Journal of Tropical Ecology, 28(4), pp.369-376. https://doi.org/10.1017/S026646741200034X
8. Chatterjee, A., Adhikari, S., Barik, A. and Mukhopadhyay, S.K., 2013. The mid-winter assemblage and diversity of bird populations at Patlakhawa protected forest, Coochbehar, West Bengal, India. Ring, 35, pp.31-53. https://doi.org/10.2478/ring-2013-0002
9. Chatterjee, S. and Basu, P., 2015. Avian frugivory and seed dispersal of a large fruited tree in an Indian moist deciduous forest. Acta Oecologica, 65–66, pp.32-40. https://doi.org/10.1016/j.actao.2015.04.003
10. Chettri, N., Sharma, E. and Deb, D.C., 2001. Bird community structure along a trekking corridor of Sikkim Himalaya: a conservation perspective. Biological Conservation, 102, pp.1-16. https://doi.org/10.1016/S0006-3207(01)00092-1
11. Deagle, B. and Tollit, D.J. 2007. Quantitative analysis of prey DNA in pinniped faeces: Potential to estimate diet composition? Conservation Genetics, 8(3), pp.743-747. https://doi.org/10.1007/s10592-006-9197-7
12. De Graaf, R.M., Tilghman, N.G. and Anderson, S.H., 1985. Foraging guilds of North American birds. Environmental Management, 9, pp.493-536. https://doi.org/10.1007/BF01867324
13. Díaz, S., Tilman, D. and Fargione, J., 2005. Biodiversity regulation of ecosystem services. In Hassan, R., Scholes, R., Ash, N., (eds), Ecosystems and human well-being: Current state and trends Washington (D.C.): Island Press, pp.297-329.
14. Ding, Z., Liang, J., Hu,Y., Zhou, Z., Sun, H., Liu, L., Liu, H., Hu, H. and Si, X., 2019. Different responses of avian feeding guilds to spatial and environmental factors across an elevation gradient in the central Himalaya. Ecology and Evolution, 9, pp. 4116-4128. https://doi.org/10.1002/ece3.5040
15. Ferger, S.W., Schleuning, M., Hemp, A., Howell, K.M. and Bohning-Gaese, K., 2014. Food resources and vegetation structure mediate climatic effects on species richness of birds. Global Ecology and Biogeography, 23, pp.541-549. https://doi.org/10.1111/geb.12151
16. Geisler, C.C., Ghazoul, J. and Hellier, A., 2000. Setting critical limits to ecological indicators of sustainable tropical forestry. International Forestry Review, 2(4), pp.243-253.
17. Gomes, L.G.L., Oostra, V., Nijman, V., Cleef, A.M. and Kappelle, M., 2008. Tolerance of frugivorous birds to habitat disturbance in a tropical cloud forest. Biological Conservation, 141(3), pp.860-871. https://doi.org/10.1016/j.biocon.2008.01.007
18. González-Salazar, C., Martínez-Meyer, E. and López-Santiago, G., 2014. Hierarchical classification of tropic guilds for birds and mammals of North America. Revista Mexicana De Biodiversidad, 85(3), pp.931-941. https://doi.org/10.7550/rmb.38023
19. Grant, E. Canterbury, Thomas, E. Martin, Daniel R. Petit, Lisa J. Petit and David F. Bradford, 2000. Bird Communities and Habitat as Ecological Indicators of Forest Condition in Regional Monitoring. Conservation Biology, 14(2), pp.544-558. https://doi.org/10.1046/j.1523-1739.2000.98235.x
20. Gray, M.A., Baldauf, S.L., Mayhew, P.J. and Hill, J.K., 2007. The response of avian feeding guilds to tropical forest disturbance. Conservation Biology, 21(1, pp.33-141. https://doi.org/10.1111/j.1523-1739.2006.00557.x
21. Gregory, R.D., Vorisek, P., Noble, D.G., Strien, A.V., Klvanova, A., Eaton, M., Meyling, A.W.G., Joys, A., Foppen, R.P.B. and Burfield, I.J., 2008. The generation and use of bird population indicators in Europe. Bird Conservation International, 18, pp.S223-S244. https://doi.org/10.1017/S0959270908000312
22. Grewal, B., Sen, S., Singh, S., Devasar, N. and Bhatia, G., 2017. A pictorial field guide to birds of India, Pakistan, Nepal, Bhutan, Sri Lanka, and Bangladesh. Om books International.
23. Grimmett, R., Inskipp, C. and Inskipp, T., 2011. Helm Field Guides-Birds of the Indian Subcontinent. Christopher Helm.
24. Hammer, O., Harper, D.A.T. and Ryan, P.D., 2001. PAST: Paleontological statistics software package for education and data analysis. Palaeontologia Electronica, 4(1).
25. Hemanth, K.V., Jain, M., Singh, I. and Chundeli, F.A., 2021. An Assessment of Turahalli Mountain Biking Trail Using Sustainable Trailing Design Guidelines of IMBA. Journal of The Institution of Engineers (India): Series A, 102, pp.841-849. https://doi.org/10.1007/s40030-021-00537-w
26. Imai, H. and Nakashizuka., T., 2010. Environmental factors affecting the composition and diversity of avian community in mid- to late breeding season in urban parks and green spaces. Landsc Urban Plan, 96(3), pp.183-194. https://doi.org/10.1016/j.landurbplan.2010.03.006
27. James, R.K. and Roland, R.R., 1971. Vegetation Structure and Avian Diversity in Several New World Areas. The American Naturalist, 115(945), pp.423-435. https://doi.org/10.1086/282735
28. Johns, A.D., 1991. Responses of Amazonian rain forest birds to habitat modification. Journal of Tropical Ecology, 7(4), pp.417-437. https://doi.org/10.1017/S0266467400005812
29. Katuwal, H.B., Basnet, K., Khanal, B., Devkota, S., Rai, S.K., Gajurel, J.P., Scheidegger, C. and Nobis, M.P., 2016. Seasonal changes in bird species and feeding guilds along elevational gradients of the central Himalayas, Nepal. PLoS One, 11, e0158362. https://doi.org/10.1371/journal.pone.0158362
30. Kissling, W.D., Rahbek, C. and Böhning-Gaese, K., 2007. Food plant diversity as broad-scale determinant of avian frugivore richness. Proceedings of the Royal Society B: Biological Sciences, 274, pp.799-808. https://doi.org/10.1098/rspb.2006.0311
31. Kissling, W.D., Sekercioglu, C.H. and Jetz, W., 2012. Bird dietary guild richness across latitudes, environments and biogeographic regions. Global Ecology and Biogeography 21, pp.328-340. https://doi.org/10.1111/j.1466-8238.2011.00679.x
32. Kornan, M. and Adamik, P., 2007. Foraging guild structure within a primeval mixed forest bird assemblage: a comparison of two concepts. Community Ecology, 8(2), pp.133-149. https://doi.org/10.1556/ComEc.8.2007.2.1
33. Kottawa-Arachchi, J.D. and Gamage, R.N., 2015. Avifaunal diversity and bird community responses to man-made habitats in St. Coombs Tea Estate, Sri Lanka. Journal of Threatened Species, 7, pp.6878-6890. https://doi.org/10.11609/JoTT.o3483.6878-90
34. Lawson, J.H., Bignell, D.E., Bolton, B., Bloemers, G.F., Eggleton, P., Hammond, P.M., Hodda, M., Holt, R.D., Larsen, T.B., Mawdsley, N.A., Stork, N.E., Srivastava, D.S. and Watt, A.D., 1998. Biodiversity inventories, indicator taxa, and effects of habitat modification in tropical forest. Nature, 391, pp.72-76. https://doi.org/10.1038/34166
35. Lewis, S.B., Fuller, M.R and Titus, K., 2004. A comparison of 3 methods for assessing raptor diet during the breeding season. Wildlife Society Bulletin, 32(2), pp.373-385. https://doi.org/10.2193/0091-7648(2004)32[373:ACOMFA]2.0.CO;2
36. Lorenzón, R.E., Beltzer, A.H., Olguin, P.F. and Ronchi-Virgolini, A.L., 2016. Habitat heterogeneity drives bird species richness, nestedness and habitat selection by individual species in fluvial wetlands of the Paraná River, Argentina. Austral Ecology, 41(7), pp. 829-841. https://doi.org/10.1111/aec.12375
37. MacArthur, R.H. and MacArthur, J.W., 1961. On bird species diversity. Ecology, 42, pp.594-598. https://doi.org/10.2307/1932254
38. Martin L. Cody, 1981. Habitat Selection in Birds: The Roles of Vegetation Structure, Competitors, and Productivity. Bioscience, 31 (2), pp.107-113. https://doi.org/10.2307/1308252
39. Mukhopadhyay, S. and Mazumdar, S., 2019. Habitat-wise composition and foraging guilds of avian community in a suburban landscape of lower Gangetic plains, West Bengal, India. Biologia, 74, pp. 1001-1010. https://doi.org/10.2478/s11756-019-00226-x
40. O’Connell, T.J., Jackson, L.E. and Brooks, R.P., 2000. Bird guilds as indicators of ecological conditions in the central Appalachians. Ecological Applications, 10(6), pp.1706-1721. https://doi.org/10.1890/1051-0761(2000)010[1706:BGAIOE]2.0.CO;2
41. Oehm, J., Juen., A, Nagiller, K., Neuhauser, S. and Traugott, M., 2011. Molecular scatology: how to improve prey DNA detection success in avian faeces? Molecular Ecology Resources 11, pp.620–628. https://doi.org/10.1111/j.1755-0998.2011.03001.x
42. Perera, P., Wijesinghe, S., Dayawansa, N., Marasinghe, S. and Wickramarachchi, C., 2017. Response of tropical birds to habitat modifications in fragmented forest patches: a case from a tropical lowland rainforest in south-west Sri Lanka. Community Ecology, 18, pp.175-183. https://doi.org/10.1556/168.2017.18.2.7
43. Pettorelli, N., Ryan, S., Mueller, T., Bunnefeld, N., Jędrzejewska, B., Lima, M. and Kausrud, K., 2011. The normalized difference vegetation index (NDVI): unforeseen successes in animal ecology. Climate Research, 46(1), pp.15-27. https://doi.org/10.3354/cr00936
44. Pinotti, B.T., Pagotto, C.P. and Pardini, R., 2012. Habitat structure and food resources for wildlife across successional stages in a tropical forest. Forest Ecology and Management, 283, pp.119-127. https://doi.org/10.1016/j.foreco.2012.07.020
45. Puttick, G.M., 1984. Foraging and Activity Patterns in Wintering Shorebirds. In Burger, J. and B.L. Olla (eds), Behavior of Marine Animals, Shorebirds: Migration and Foraging Behaviour, Plenum Press, New York, London.
46. Prajapati, S.H. and Prajapati, R.P., 2013. Classified guilds in avian community with respect to food and feeding behaviour. Indian Journal of Scientific Research and Technology, 1, pp.1-7.
47. Rajpar, M.N. and Zakaria, M., 2011. Bird species abundance and their correlationship with microclimate and habitat variables at natural wetland reserve, peninsular Malaysia. International Journal of Zoology. https://doi.org/10.1155/2011/758573
48. Root, R., 1967. The Niche Exploitation Pattern of the Blue-Gray Gnat Catcher. Ecological Monographs, 37, pp.317-350. https://doi.org/10.2307/1942327
49. Sekercioglu, C.H., Primack, R.B. and Wormworth, J., 2012. The effects of climate change on tropicalbirds. Biological Conservation 148(1), pp. 1-18. https://doi.org/10.1016/j.biocon.2011.10.019
50. Shankar Raman, T.R., Rawat, G.S. and Johnsingh, A.J.T., 1998. Recovery of tropical rainforest avifauna in relation to vegetation succession following shifting cultivation in Mizoram, north-east India. Journal of Applied Ecology, 35, pp.214-231. https://doi.org/10.1046/j.1365-2664.1998.00297.x
51. Sheppard, S.K., Bell, J., Sunderland, K.D., Fenlon, J., Skervin, D., and Symondson, W.O.C., 2005. Detection of secondary predation by PCR analyses of the gut contents of invertebrate generalist predators. Molecular Ecology, 14, pp.4461-4468. https://doi.org/10.1111/j.1365-294X.2005.02742.x
52. Somasundaram, S. and Vijayan, L., 2008. Foraging Behaviour and Guild Structure of Birds in the Montane Wet Temperate Forest of the Palni Hills, South India. Podoces, 3(1/2), pp.79-91.
53. Steele, J.H., 2009. Assessment of some linear food web methods. Journal of Marine Systems, 76, pp.186-194. https://doi.org/10.1016/j.jmarsys.2008.05.012
54. Sudhira, H.S. and Nagendra, H., 2013. Local Assessment of Bangalore: Graying and Greening in Bangalore – Impacts of Urbanization on Ecosystems, Ecosystem Services and Biodiversity. In Elmqvist, T., et al. (eds), Urbanization, Biodiversity and Ecosystem Services: Challenges and Opportunities. Springer, Dordrecht. https://doi.org/10.1007/978-94-007-7088-1_7
55. Sutherland, W.J., 2006. Ecological census techniques: a handbook. Cambridge University Press, Cambridge, New York. https://doi.org/10.1017/CBO9780511790508
56. Tanalgo, K.C., Pineda, J.A.F., Agravante, M.E. and Amerol, Z.M., 2015. Bird diversity and structure in different land-use types in lowland south-central Mindanao, Philippines. Tropical Life Sciences Research, 26(2), pp.85-103.
57. Trager, M. and Mistry, S., 2003. Avian community composition of kopjes in a heterogeneous landscape. Oecologia, 135, pp.458-468. https://doi.org/10.1007/s00442-003-1204-9
58. Weller, N.W., 1978. Management of Freshwater Marshes for Wildlife. In Good, R.E., D.F. Whigham and R.L. Simpson (eds)-Fresh Water Wetlands: Ecological Processes and Management Potential, Academic Press, New York, pp.267-284.
59. Whelan, C.J., Wenny D.G. and Marquis R.J., 2008. Ecosystem services provided by birds. Annals of the New York Academy of Sciences., 1134 (1), pp.25-60. https://doi.org/10.1196/annals.1439.003