Donors

African Bird Club
http://www.africanbirdclub.org/

Black Vulture Conservation Foundation
http://bvcf.joopbox.com/eng/index.php

DBU
http://www.dbu.de/

EAZA – European Association of Zoos and Aquaria
http://www.eaza.net/Pages/European%20Association%20of%20Zoos%20and%20Aquaria.aspx

Frankfurt Zoological Society
http://www.zgf.de/?id=14&language=en

Mike Madders Field Research Award
http://www.natural-research.org/environmental-research-charity/press-room/

Mohamed bin Zayed Species Conservation Fund
http://www.mbzspeciesconservation.org/

Mtel Eco grant
http://www.mtel.bg/

Rhodope Project
http://www.rodope.org/display.php

Royal Society for the Protection of Birds
http://www.rspb.org.uk/

Rufford Small Grant Foundation
http://www.ruffordsmallgrants.org/rsg/

Vulture Conservation Foundation
http://www.vulturefoundation.org/en/UnderConstruction

Individuals
Barbara Cross & Michael Roberts (RSPB)
David Broadly (Richmond & Twickenham RSPB group)
Ed Keeble 
Svetoslav Spasov (BSPB)