T Karimov - J. Appl. Environ. Biol. Sci, 2016 - researchgate.net
Gradual decrease in reproductive and demographic indicators of black vultures in Azerbaijan territory has been observed during past several years. To study the reasons we …
K Tahir, Q Qiyas - Евразийский Союз Ученых, 2015 - cyberleninka.ru
Nevertheless, it is worth noting that steady improvement of griffon vulture populations in all their aerials is not observed. This is related to a range of limiting factors that affect those …