This is just selection of links on miscellaneous texts and abstracts of articles about Short-toed Eagles. So…
Some abstracts can be found on the NCBI website with PubMed database:
• Sacchi P, Soglia D, Maione S, Meneguz G, Campora M, Rasero R, 2004 – A non-invasive test for sex identification in short-toed Eagle (Circaetus gallicus) // Mol Cell Probes, Jun 18 (3): 193-6. (En).
• Martin GR, Katzir G, 1999 – Visual fields in Short-toed Eagles, Circaetus gallicus (Accipitridae), and the function of binocularity in birds // Brain Behav Evol, 53 (2): 55-66. (En).
The encyclopedic compilation of information (Es) among other things has extensive ornithological bibliography concerning researching of Short-toed Eagle. The source is a site of the Enciclopedia Virtual de los Vertebrados Españoles.