This article dedicated to the population of Short-toed Eagle in Macedonia is available on the Macedonian Ecological Society website:
• Metodija VELEVSKI & Bratislav GRUBAČ, 2008 – Distribution and estimation of the population size of the Short-toed Snake-eagle Circaetus gallicus in Macedonia // Proceedings of the III Congress of Ecologists of the Republic of Macedonia with International Participation, 06-09.10.2007, Struga. Special issues of Macedonian Ecological Society, Vol. 8, Skopje – 
(En).