Authors: Collar, NJ

Citation: Nj. Collar, Opinion Collecting and conservation: cause and effect, BIRD CONS I, 10(1), 2000, pp. 1-15

Authors: Hilton-Taylor, C Mace, GM Capper, DR Collar, NJ Stuart, SN Bibby, CJ Pollock, C Thomsen, JB

Citation: C. Hilton-taylor et al., Assessment mismatches must be sorted out: they leave species at risk, NATURE, 404(6778), 2000, pp. 541-541

Authors: Collar, NJ

Citation: Nj. Collar, The type locality and conservation status of Monticola bensoni, OSTRICH, 70(2), 1999, pp. 151-151

Authors: Collar, NJ

Citation: Nj. Collar, New species, high standards and the case of Laniarius liberatus, IBIS, 141(3), 1999, pp. 358-367

Authors: Rasmussen, PC Collar, NJ

Citation: Pc. Rasmussen et Nj. Collar, Major specimen fraud in the Forest Owlet Heteroglaux (Athene auct.) blewitti, IBIS, 141(1), 1999, pp. 11-21