[1] Peregrine Fund, 5668 West Flying Hawkik Lane, Boise, ID 83709 USA
[2] Aves Rapaces Bolivia Programa Invest, Calle Villar 369, Sucre, Bolivia
[3] Museo Nacl Hist Nat, Calle 26 S-N, La Paz, Bolivia
[4] Calle 107A 7-82,Apto 501, Bogota, Colombia
[5] Univ KwaZulu Natal, Ctr Funct Biodivers, Sch Life Sci, P Bag X01, ZA-3209 Pietermaritzburg, South Africa
[6] Convent Migratory Species Abu Dhabi Off, POB 45553, Abu Dhabi, U Arab Emirates
[7] Cornell Univ, 159 Sapsucker Woods Rd, Ithaca, NY 14850 USA
[8] Cornell Lab Ornithol, 159 Sapsucker Woods Rd, Ithaca, NY 14850 USA
[9] Boise State Univ, Dept Biol Sci, 1910 Univ Dr, Boise, ID 83725 USA
[10] Boise State Univ, Raptor Res Ctr, 1910 Univ Dr, Boise, ID 83725 USA
[11] Endangered Wildlife Trust, ZA-1685 Glen Austin Ah, South Africa
[12] Habitat Info Ltd, Rookwood Studios, Solva SA62 6UJ, Pembroke, Wales
[13] Hawk Mt Sanctuary Assoc, Acopian Ctr Conservat Learning, 410 Summer Valley Rd, Orwigsburg, PA 17961 USA
[14] HawkWatch Int, 2240 South 900 East, Salt Lake City, UT 84106 USA
[15] Smithsonian Conservat Biol Inst, Migratory Bird Ctr, Natl Zool Pk,MRC 5503, Washington, DC 20013 USA
[16] Himalayan Nat, Ganesh Marg,POB 10918, Kathmandu, Nepal
[17] Univ Vienna, Konrad Lorenz Res Ctr, Dept Behav & Cognit Biol, Fischerau 11, A-4645 Grunau Almtal, Austria
[18] Univ Plymouth, Sch Biol & Marine Sci, Plymouth PL4 8AA, Devon, England
[19] Vulture Conservat Fdn, Wuhrstr 12, CH-8003 Zurich, Switzerland
[20] Int Bearded Vulture Monitoring IBM, Wuhrstr 12, CH-8003 Zurich, Switzerland