Nigel J. Collar

Performance of a points-based scoring system for assessing species limits in birds

Joseph A. Tobias, Stuart H. M. Butchart, Paul F. Donald, 2021, Ornithology.

Value of the IUCN Red List

H. Resit Akçakaya, Georgina M. Mace, Leon Bennun, 2003 .

Birds to watch 2 : the world list of threatened birds

Alison J. Stattersfield, Nigel J. Collar, N. Collar, 1996 .

Quantitative criteria for species delimitation

Joseph A. Tobias, Nathalie Seddon, John D. Pilgrim, 2010 .

Assessment mismatches must be sorted out: they leave species at risk

Georgina M. Mace, Caroline Pollock, Simon N. Stuart, 2000, Nature.

The Impact of Conservation on the Status of the World’s Vertebrates

Bruce B. Collette, H. Resit Akçakaya, Ben Collen, 2010, Science.

Extinction by assumption; or, the Romeo Error on Cebu

Nigel J. Collar, N. Collar, 1998 .