This page provides a list of publications with PDFs of most papers. File sizes are indicated where these are greater than 1 Mb, to warn of lengthy downloads. If any links fail, please contact cns26 at cam.ac.uk.

Jump to subject areas:

• Collar, N. (1994) Extinction, endangerment and everything. World Birdwatch 16(2): 6-9. [Condensed version in Kenya Birds 3: 81-83.] Download PDF (1.7 Mb)
  
  
• Crosby, M. J., Stattersfield, A. J., Collar, N. J. & Bibby, C. J. (1996) Predicting avian extinction rates. Biodiversity Letters 2: 182-185. Download PDF
  
  
• Collar, N. J. (1997) The threat status of the Sidamo Lark. Bull. Brit. Orn. Club 117: 75-76. Download PDF
  
  
• Collar, N. J. (1997) Species survival versus perpetuation of myth: the case of the Philippine Eagle. Oryx 31: 4-7. Download PDF (1.1 Mb)
  
  
• Collar, N. J. (1998) Extinction by assumption: or, the Romeo Error on Cebu. Oryx 32: 239-243. Download PDF (1.7 Mb)
  
  
• Mace, G. M. & Collar, N. J. (2002) Priority-setting in species conservation. Pp.61-73 in K. Norris & D. J. Pain, eds. Conserving bird biodiversity: general principles and their application. Cambridge: Cambridge University Press (Conservation Biology Series no.7). Download PDF (2.6 Mb)
  
  
• Collar, N. J. & Rudyanto (2003) The archive and the ark: bird specimen data in conservation status assessment. Bull. Brit. Orn. Club 123A: 95-113. Download PDF
  
  
• Adams, M. P., Cooper, J. H. & Collar, N. J. (2003) Extinct and endangered (“E&E”) birds: a proposed list for collections catalogues. Bull. Brit. Orn. Club 123A.: 338-354. Download PDF
  
  
• Butchart, S. H. M., Stattersfield, A. J. & Collar, N. J. (2006) How many bird extinctions have we prevented? Oryx 40: 266-278. Download PDF
  
  
• Collar, N. J. (2006) Discovering, documenting and defining species: the quest for shared programmes, protocols and principles. DVD contribution enclosed with Proceedings of the International Conference: Biodiversity—Science and Governance (Paris, 24–28 January 2005). Paris: Muséum National d’Histoire Naturelle. Download PDF
  

• Mace, G., Collar, N., Cooke, J., Gaston, K., Ginsberg, J., Leader-Williams, N., Maunder, M. & Milner-Gulland, E. J. (1993) The development of new criteria for listing species on the IUCN Red List. Species 19: 16-22. Download PDF (1.9 Mb)
  
  
• Mace, G. M. & Collar, N. J. (1994) Extinction risk assessment for birds through quantitative criteria. Ibis 137: S240-246. Download PDF (2.1 Mb)
  
  
• Collar, N. J. (1999) Risk indicators and status assessment in birds. Pp.13-28 [“foreword” = guest essay] in J. del Hoyo, A. D. Elliott & J. Sargatal, eds. Handbook of the birds of the world, 5. Barcelona: Lynx Edicions.
  
  
• Akçakaya, R., Baillie, J., Collar, N., Gärdenfors, U., Gaston, K., Irvin, B., Keith, D., Lande, R., Leader-Williams, N., Lusty, C., Mace, G., Master, L., Milner-Gulland, E. J., Molur, S., Powles, H., Punt, A., Rodríguez, J. P., Seddon, M., Stattersfield, A. & Yahara, T. (1999) IUCN Red List criteria review provisional report: draft of the proposed changes and recommendations. Species 31-32: 43-57. Download PDF (3.4 Mb)
  
  
• Hilton-Taylor, C., Mace, G. M., Capper, D. R., Collar, N. J., Stuart, S. N., Bibby, C. J., Pollock, C. & Thomsen, J. B. (2000) Assessment mismatches must be sorted out: they leave species at risk. Nature 404: 541. Download PDF
  
  
• Lamoreux, J., Akçakaya, H. R., Bennun, L., Collar, N. J., Boitani, L., Brackett, D., Bräutigam, A., Brooks, T. M., da Fonseca, G. A. B., Mittermeier, R. A., Rylands, A. B., Gärdenfors, U., Hilton-Taylor, C., Mace, G., Stein, B. A. & Stuart, S. (2003) Value of the IUCN Red List. Trends in Ecology and Evolution 18: 214-215. Download PDF
  

• Collar, N. J. (1987) Red Data Books and national conservation strategies. World Birdwatch 9 (2): 6-7. Download PDF
  
  
• Collar, N. J. (1991) Red Data Books: how and why. AFA Watchbird 18(4): 13-16. Download PDF (2 Mb)
  
  
• Collar, N. J. (1994) Red Data Books, Action Plans, and the need for site-specific synthesis. Species 21-22: 132-133. Download PDF
  
  
• Collar, N. J. (1996) The reasons for Red Data Books. Oryx 30: 121-130. Download PDF (2.7 Mb)

• Collar, N. J. (1986) Species are a measure of man’s freedom: reflections after writing a Red Data Book on African birds. Oryx 20: 15-19. Download PDF (1.5 Mb)
  [French translation published in Le Courrier de la Nature 110 (1987): 30-35. Download PDF 2.1 Mb]
  
  
• Collar, N. J. (1988) Life, liberty and the pursuit of happiness. Amer. Birds 42: 19-22. Download PDF (1.4 Mb)
  
  
• Collar, N. J. (2003) Beyond value: biodiversity and the freedom of the mind. Global Ecology and Biogeography 12: 265-269. Download PDF

• Collar, N. J. (1994) Bannerman and the Black Oystercatcher. Brit. Birds 87: 492. Download PDF
  
  
• Collar, N. J. (1998) Undiscovered country: the non-collection of the Somali shrike. Bull. African Bird Club 5: 136-137. Download PDF
  
  
• Collar, N. J. (2003) British conservationists and museum scientists. Auk 120: 222-223. Download PDF
  
  
• Collar, N. J. (1999) New species, high standards and the case of Laniarius liberatus. Ibis 141: 358-367. Download PDF (3.6 Mb)
  
  
• Collar, N. J. (2000) Collecting and conservation: cause and effect. Bird Conserv. Internatn. 10: 1-15. Download PDF

• Collar, N. J. & Violani, C. G. (1984) Specimens of Calandrella obbiensis and Sarothrura ayresi in Milan Museum. Bull. Brit. Orn. Club 104: 113-114. Download PDF
  
  
• Stuart, S. N. & Collar, N. J. (1985) Subspeciation in the Karamoja Apalis Apalis karamojae. Bull. Brit. Orn. Club 105: 86-89. Download PDF
  
  
• Collar, N. J. & Tattersall, I. (1987) J. T. Last and the type-locality of Benson’s Rockthrush Monticola bensoni. Bull. Brit. Orn. Club 107: 55-59. Download PDF (1 Mb)
  
  
• Collar, N. J. & Long, A. J. (1996) Taxonomy and names of Carpococcyx cuckoos from the Greater Sundas. Forktail 11: 135-150. Download PDF (2.7 Mb)
  
  
• Collar, N. J. (1996) Species concepts and conservation: a response to Hazevoet. Bird Conserv. Internatn. 6: 197-200. Download PDF
  
  
• Collar, N. J. (1997) Taxonomy and conservation: chicken and egg. Bull. Brit. Orn. Club 117: 122-136. Download PDF (3.3 Mb)
  
  
• Collar, N. J. (1998) Monotypy in Francolinus griseostriatus. Bull. Brit. Orn. Club 118: 124-126.
  
  
• Collar, N. J. & van Balen, S. (2002) The Blue-tailed Trogon Harpactes (Apalharpactes) reinwardtii: species limits and conservation status. Forktail 18: 121-125. Download PDF
  
  
• Collar, N. J. (2003) How many bird species are there in Asia? Oriental Bird Club Bull. 38: 20-30. Download PDF (3.2 Mb)
  
  
• Collar, N. J. (2004) Asian enigmas: four odd “thrushes”. BirdingASIA 1: 18-21. Download PDF (1.1 Mb)
  
  
• Collar, N. J. (2004) Species limits in some Indonesian thrushes. Forktail 20: 71-87. Download PDF
  
  
• Collar, N. J. (2004) Subspecies of Taiwan birds—first impressions. BirdingASIA 2: 34-52. Download PDF (5.9 Mb)
  
  
• Collar, N. J. (2005) Changes in species-level taxonomy of Asian birds in 2004, with other notes. BirdingASIA 3: 35-40. Download PDF (1.6 Mb)
  
  
• Collar, N. J. & Spottiswoode, C. N. (2005) Species limits in birds: a response to Watson. BioScience 55: 388-389. Download PDF
  
  
• Collar, N. J. (2006) A partial revision of the Asian babblers (Timaliidae). Forktail 22: 85-112. Download PDF
  
  
• Collar, N. J. (2006) A taxonomic reappraisal of the Black-browed Barbet Megalaima oorti. Forktail 22: 170-173. Download PDF
  
  
• Collar, N. J. & Fishpool, L. D. C. (2006) What is Pogoniulus makawai? Bull. African Bird Club 13: 18-27. Download PDF
  
  
• Fishpool, L. D. C. & Collar, N. J. (2006) The taxonomic and conservation status of Chapin’s Crombec Sylvietta chapini. Bull. African Bird Club 13: 130-135. Download PDF
  
  
• Collar, N. J. (2006) Systematic notes on Asian birds. 59. Taxonomy as tar-baby: the type locality and nomenclature of the Mindanao Bleeding-heart Gallicolumba crinigera (Pucheran, 1853). Zool. Verh. 80: 193-202. Download PDF
  
  
• Collar, N. J. (2007) Philippine bird taxonomy and conservation: a commentary on Peterson (2006). Bird Conserv. Internatn. 17: 103-113. Download PDF
  

• Collar, N. J. (1986) The best-kept secret in Brazil. World Birdwatch 8(2): 14-15. Download PDF
  
  
• Collar, N. J., Dee, T. J. & Goriup P. D. (1987) La conservation de la nature à Madagascar: la perspective du CIPO. Pp. 97-108 in R. A. Mittermeier, L. H. Rakotovao, V. Randrianasolo, E. J. Sterling & D. Devitre, eds. Priorités en matière de conservation des espèces à Madagascar. Gland, Switzerland: International Union for Conservation of Nature and Natural Resources (Occ. Pap. 2). Download PDF (4.6 Mb)
  
  
• Stuart, S. N. & Collar, N. J. (1988) Birds at risk in Africa and related islands: the causes of their rarity and decline. Proc. VI Pan-Afr. Orn. Congr.: 1-25. Download PDF (5.3 Mb)
  
  
• Collar, N. J. (1990) The Amazon as ark. World Birdwatch 12(1-2): 10-12. Download PDF (1.3 Mb)
  
  
• Collar, N. J. (1996) The conservation of grassland birds: towards a global perspective. Pp.9-18 in J. Fernández Gutiérrez & J. Sanz-Zuasti, eds. Conservación de las aves esteparias y su hábitat. Valladolid: Junta de Castilla y León. Download PDF (5.4 Mb)
  
  
• Collar, N. J., Wege, D. C. & Long, A. J. (1997) Patterns and causes of endangerment in the New World avifauna. Pp.237-260 in J. V. Remsen, ed. Studies in Neotropical ornithology honoring Ted Parker. Washington, D.C.: American Ornithologists’ Union (Orn. Monogr. 48). Download PDF (4.9 Mb)
  
  
• Brooks, T. M., Pimm, S. L. & Collar, N. J. (1997) Deforestation predicts the number of threatened birds in insular South-East Asia. Conserv. Biol. 11: 382-394. Download PDF (4.2 Mb)
  
  
• Collar, N. J. (2001) Asian birds on the brink. Oriental Bird Club Bull. 34: 60-65. Download PDF (1.9 Mb)
  
  
• Lambert, F. R. & Collar, N. J. (2002) The future for Sundaic lowland forest birds: long-term effects of commercial logging and fragmentation. Forktail 18: 127-146. Download PDF
  
  
• Mallari, N. A. D., Crosby, M. J. & Collar, N. J. (2004) Unexplored Philippine forests as revealed by point-locality mapping. Forktail 20: 124-128. Download PDF (1.5 Mb)
  
  
• Butchart, S. H. M., Collar, N. J., Crosby, M. J. & Tobias, J. A. (2005) “Lost” and poorly known birds: top targets for birders in Asia. BirdingASIA 3: 41-49. Download PDF (2.7 Mb)
  
  
• Tobias, J. A., Butchart, S. H. M. & Collar, N. J. (2006) Lost and found: a gap analysis for the Neotropical avifauna. Neotropical Birding 1: 4-22. Download PDF
  

• Collar, N. J., Round, P. D. & Wells, D. R. (1986) The past and future of Gurney’s Pitta Pitta gurneyi. Forktail 1: 29-51. Download PDF (4.7 Mb)
  
  
• Collar, N. J. & Gonzaga, L. A. P. (1988) O mutum Crax blumenbachii na Reserva Florestal Particular de Linhares - ES. Espaço, Ambiente e Planejamento (CVRD/GEAMAM) 2(8). Download PDF (5 Mb)
  
  
• Collar, N. J. (1993) The conservation status in 1982 of the Aldabra White-throated Rail Dryolimnas cuvieri aldabranus. Bird Conserv. Internatn. 3: 299-305. Download PDF (1.6 Mb)
  
  
• Collar, N. J. & Wege, D. C. (1995) The distribution and conservation status of the Bearded Tachuri Polystictus pectoralis. Bird Conserv. Internatn. 5: 367-390. Download PDF (5.8 Mb)
  
  
• Collar, N. J., Scharlemann, J. P. W. & Fisher, C. T. (2000) Max E. G. Bartels and the Javan Lapwing Vanellus macropterus. Kukila 11: 122-124. Download PDF
  
  
• Long, A. J. & Collar, N. J. (2002) Distribution, status and natural history of the Bornean Ground Cuckoo Carpococcyx radiatus. Forktail 18: 111-119. Download PDF
  
  
• Collar, N. J. (2003) A third Philippine specimen of Chinese Crested-tern Sterna bernsteini. Forktail 19: 151. Download PDF
  
  
• van Balen, S., Collar, N. J., Liley, D. & Rudyanto (2005) The White-breasted Babbler Stachyris grammiceps of Java: natural history and conservation status, especially on Gunung Halimun. Forktail 21: 139-146. Download PDF
  
  
• Watson, M., Wilson, J. M., Koshkin, M., Sherbakov, B., Karpov, F., Gavrilov, A., Schielzeth, H., Brombacher, M., Collar, N. J. & Cresswell, W. (2006) Nest survival and productivity of the critically endangered Sociable Lapwing. Ibis 148: 489-502. Download PDF

• Collar, N. J. (1980) Bustard Group general report. ICBP Bull. 13: 129-134. Download PDF (1.3 Mb)
  
  
• Collar, N. J. (1980) The world status of the Houbara: a preliminary review. Symposium papers on Houbara Bustard. Fordingbridge: Game Conservancy. Download PDF (2.8 Mb)
  
  
• Collar, N. J. & Goriup, P. D. (1980) The conservation of the Great Bustard in Portugal: a working report. Unpublished. Download PDF (8.5 Mb)
  
  
• Collar, N. J. & Goriup, P. D. (1981) Problems and progress in the captive breeding of Great Bustards in quasi-natural conditions. Avicult. Mag. 87: 131-140.
  
  
• Collar, N. J. (1983) A history of the Houbara in the Canaries. Bustard Studies 1: 9-29. Download PDF (4.4 Mb)
  
  
• Collar, N. J. (1983) The bustards and their conservation. Pp.244-257 in P. D. Goriup & H. Vardhan, eds. Bustards in decline. Jaipur: Tourism and Wildlife Society of India. Download PDF (2.6 Mb)
  
  
• Inskipp, C. & Collar, N. J. (1984) The Bengal Florican: its conservation in Nepal. Oryx 18: 30-35. Download PDF (1.5 Mb)
  
  
• Collar, N. J. (1985) The world status of the Great Bustard. Bustard Studies 2: 1-20. Download PDF (3.2 Mb)
  
  
• Gray, T. N. E., Hong Chamnan, Ro Borey, Collar, N. J. & Dolman, P. M. (2007) Habitat preferences of a globally threatened bustard provide support for community-based conservation in Cambodia. Biol. Conserv. 138: 341-350 Download PDF
  

• Collar, N. J. (1991) Threatened parrots of the Neotropics. AFA Watchbird 18(3): 43-48. Download PDF (2.9 Mb)
  
  
• Wege, D. C. & Collar, N. J. (1991) The Blue-cheeked Amazon Amazona dufresniana: a review. Bird Conserv. Internatn. 1: 317-328. Download PDF (2.9 Mb)
  
  
• Collar, N. J. & Juniper, A. T. (1992) Dimensions and causes of the parrot conservation crisis. Pp.1-24 in S. R. Beissinger & N. F. R. Snyder, eds. New World parrots in crisis: solutions from conservation biology. Washington, D.C.: Smithsonian Institution Press. Download PDF (4.1 Mb)
  
  
• Collar, N. J. (1995) On the possible occurrence of Amazona dufresniana in Brazil (Psittaciformes: Psittacidae). Ararajuba 3: 70. Download PDF
  
  
• Collar, N. J. (1996) Priorities for parrot conservation in the New World. Cotinga 5: 26-31. Download PDF (1.8 Mb)
  
  
• Collar, N. J. & Pittman, A. J. (1996) Amazona kawalli is a valid name for a valid species. Bull. Brit. Orn. Club 116: 256-265. Download PDF (2 Mb)
  
  
• Collar, N. J. (1998) Information and ignorance concerning the world’s parrots: an index for twenty-first century research and conservation. Pp.51-78 in Proc. IV International Parrot Convention (“Parrot conservation into the 21st century: uniting excellence in captivity and field”). Puerto de la Cruz, Tenerife: Loro Parque, S.A. [Reproduced in Papageienkunde 2: 201-235.] Download PDF (7.1 Mb)
  
  
• Rasmussen, P. C. & Collar, N. J. (1999) On the hybrid status of Rothschild’s Parakeet Psittacula intermedia (Aves, Psittacidae). Bull. Nat. Hist. Mus. Lond. (Zool.) 65: 31-50. Download PDF (6.2 Mb)
  
  
• Rasmussen, P. C. & Collar, N. J. (1999) Der Rothschilds Edelsittich ist ein Hybride! Papageien 12 (4/99): 139-141; (5/99): 171-173. Download PDF (2.5 Mb)
  
  
• Rasmussen, P. C. & Collar, N. J. (1999) Little-known Oriental non-bird: Intermediate Parakeet Psittacula intermedia. Oriental Bird Club Bull. 29: 36-41. Download PDF (1.7 Mb)
  
  
• Collar, N. J. (2000) Globally threatened parrots: criteria, characteristics and cures. Internatn. Zoo Yearbook 37: 21-35. Download PDF (3.5 Mb)
  

• Collar, N. J. (2006) Two strange parrots in the genus Tanygnathus. BirdingASIA 6: 28-33. Download PDF (1.7 Mb)
  
  
• Collar, N. J. (2006) Parrot reintroduction: towards a synthesis of best practice. Pp.82-107 in Proc. VI International Parrot Convention (“The pleasure of parrots”). Puerto de la Cruz, Tenerife: Loro Parque Fundación. Download PDF (8.5 Mb)
  
  
• Collar, N. J. (2007) Taxonomic notes on some insular Loriculus hanging-parrots. Bull. Brit. Orn. Club 127: 97-107. Download PDF

• Collar, N. J. (1978) Nesting of Black-shouldered Kites in Portugal. Brit. Birds 71: 398-412. Download PDF (2.9 Mb)
  
  
• Collar, N. J. (1996) The Philippine Eagle: one hundred years of solitude. Oriental Bird Club Bull. 24: 30-31.
  
  
• Collar, N. J. (1997) The Philippine Eagle on its hundredth birthday. Raptor 24: 29-31. Download PDF
  
  
• Collar, N. J. (1998) Wattled Cranes in Guinea Bissau. Bull. Brit. Orn. Club 118: 57-58.
  
  
• Rasmussen, P. C. & Collar, N. J. (1998) Identification, distribution and status of the Forest Owlet Heteroglaux (Athene) blewitti. Forktail 14: 41-49. Download PDF
  
  
• Rasmussen, P. C. & Collar, N. J. (1999) Major specimen fraud in the Forest Owlet Heteroglaux (Athene auct.) blewitti. Ibis 141: 11-21. Download PDF (3.5 Mb)
  
  
• Collar, N. J. (1998) Little-known Oriental bird: Luzon Water-redstart Rhyacornis bicolor. Oriental Bird Club Bull. 27: 26-28. Download PDF (2.7 Mb)
  
  
• Collar, N. J. (1998) Bill morphology and the identification of Isabela Orioles Oriolus isabellae. Forktail 14: 82-84. Download PDF
  
  
• Collar, N. J. (2002) Insectivory and kleptoparasitism by Peregrine Falcons. Brit. Birds 95: 142. Download PDF
  
  
• Hsu, W. & Collar, N. J. (2005) Black-chinned Fruit-dove Ptilinopus leclancheri and Scaly Thrush Zoothera dauma on Taiwan. Forktail 21: 193-196. Download PDF

• Collar, N. J. (1995) Ted Parker: a personal memoir. Bird Conserv. Internatn. 5: 141-144. Download PDF
  
  
• Collar, N. J. (2004) Pioneers of Asian ornithology: Robert Swinhoe. BirdingASIA 1: 49-53. Download PDF (1.4 Mb)

• Osborne, P., Collar, N. & Goriup, P. (1984) Bustards. Dubai: Dubai Wildlife Research Centre.
  
  
• Collar, N. J. & Stuart, S. N. (1985) Threatened birds of Africa and related islands: the ICBP/IUCN Red Data Book. (Third edition, part 1). Cambridge, U.K.: International Council for Bird Preservation, and International Union for Conservation of Nature and Natural Resources.
  
  
• Collar, N. J. & Andrew, P. (1988) Birds to watch: the ICBP world list of threatened birds. Cambridge, U.K.: International Council for Bird Preservation (Techn. Publ. 8).
  
  
• Collar, N. J. & Stuart, S. N. (1988) Key forests for threatened birds in Africa. Cambridge, U.K.: International Council for Bird Preservation (Monogr. 3).
  
  
• Bibby, C. J., Collar, N. J., Crosby, M. J., Heath, M. F., Imboden, Ch., Johnson, T. H., Long, A. J., Stattersfield, A. J. & Thirgood, S. J. (1992) Putting biodiversity on the map: priority areas for global conservation. Cambridge, U.K.: International Council for Bird Preservation.
  
  
• Collar, N. J., Gonzaga, L. P., Krabbe, N., Madroño Nieto, A., Naranjo, L. G., Parker, T. A. & Wege, D. C. (1992) Threatened birds of the Americas: the ICBP/IUCN Red Data Book. (Third edition, part 2). Cambridge, U.K.: International Council for Bird Preservation.
  
  
• Collar, N. J., Crosby, M. J. & Stattersfield, A. J. (1994) Birds to watch 2: the world list of threatened birds. Cambridge, U.K.: BirdLife International (BirdLife Conservation Series 4).
  
  
• Collar, N. J., Mallari, N. A. D. & Tabaranza, B. R. (1999) Threatened birds of the Philippines. Manila: Bookmark, Inc., in conjunction with the Haribon Foundation.
  
  
• Mari, C. & Collar, N. (2000) Pink Africa. London: Harvill Press.
  
  
• Collar, N. J., editor-in-chief (2001) Threatened birds of Asia: the BirdLife International Red Data Book. (Third edition, part 3). Cambridge, U.K.: BirdLife International.
  
  
• Silveira, L. F., Olmos, F., Bianchi, C. Simpson, J., Azeredo, R., McGowan, P. J. K. & Collar, N. J. (2005) Action plan for the conservation of the Red-billed Curassow Crax blumenbachii – a flagship species for the Brazilian Atlantic Forest. World Pheasant Association, Fordingbridge, UK, & BirdLife Brasil, São Paulo, Brazil.
  
  
• Collar, N. J., Long, A. J., Robles Gil, P. & Rojo, J. (in press) Birds and people: bonds in a timeless journey. Mexico City: CEMEX/Agrupacion Sierra Madre.

• Collar, N. J., Fisher, C. T. & Feare, C. J., eds. (2003) Why museums matter: avian archives in an age of extinction. Bull. Brit. Orn. Club 123A: 1-360.
  
  
• Azafzaf, H., Sande, E., Evans, S. W., Smart, M. & Collar, N. J. (2005) International Action Plan for Houbara Bustard Chlamydotis undulata undulata. Nairobi: BirdLife International African Partnership.

• Gewalt, W. (1959) Die Grosstrappe. Wittenberg-Lutherstadt: Neue Brehm-Bücherei. [Translation, 1976; typescript in EGI Library, Oxford, and BirdLife Library, Cambridge]

• Cramp, S. & Simmons, K. E. L., eds. (1980) The birds of the western Palearctic, 2. Oxford: Oxford University Press. (Initialled entries on galliformes and raptors)
  
  
• Cramp, S. & Simmons, K. E. L., eds. (1983) The birds of the western Palearctic, 3. Oxford: Oxford University Press. (Accredited editor on title page)
  
  
• Collar, N. J. (1985) Bustard. Pp.74-75 in B. Campbell & E. Lack, eds. A dictionary of birds. Calton, U.K.: T. & A. D. Poyser.
  
  
• Collar, N. J. (1985) Bustards. Pp.152-155 in C. M. Perrins & A. L. A. Middleton, eds. The encyclopaedia of birds. London: George Allen & Unwin.
  
  
• Collar, N. J., Goriup, P. D. & Osborne, P. E. (1986) Bustard family. Pp.148-179 in E. K. Urban, C. H. Fry & S. Keith, eds. (1986) The birds of Africa, 2. London: Academic Press.
  
  
• Collar, N. J. (1996) Family Otididae (bustards). Pp.240-273 in J. del Hoyo, A. Elliott & J. Sargatal, eds. Handbook of the birds of the world, 3. Barcelona: Lynx Edicions.
  
  
• Collar, N. J. (1997) Family Psittacidae (parrots). Pp.280-477 in J. del Hoyo, A. Elliott & J. Sargatal, eds. Handbook of the birds of the world, 4. Barcelona: Lynx Edicions.
  
  
• Collar, N. J. (2000) An introduction to the parrots [in German]. Lexicon of parrots. Bretten, Germany: Arndt-Verlag.
  
  
• Collar, N. J. (2001) Endangered birds. Pp.395-406 in Encyclopedia of biodiversity, 2. New York: Academic Press. Download PDF (4.1 Mb)
  
  
• Collar, N. J. (2001) Family Trogonidae (trogons). Pp.80-127 in J. del Hoyo, A. Elliott & J. Sargatal, eds. Handbook of the birds of the world, 6. Barcelona: Lynx Edicions.
  
  
• Rasmussen, P. C. & Collar, N. J. (2002) Family Bucconidae (puffbirds). Pp.102-138 in J. del Hoyo, A. Elliott & J. Sargatal, eds. Handbook of the birds of the world, 7. Barcelona: Lynx Edicions.
  
  
• Collar, N. J. (2005) Family Turdidae (thrushes and chats). Pp. 514-807 in J. del Hoyo, A. Elliott & D. Christie, eds. Handbook of the birds of the world, 10. Barcelona: Lynx Edicions.
  
  
• Collar, N. J. & Robson, C. R. (in press) Family Timaliidae (babblers). In J. del Hoyo, A. Elliott & D. Christie, eds. Handbook of the birds of the world, 12. Barcelona: Lynx Edicions.