A lot of information about observations and data on the current state of Short-toed Eagle population in the Isère Department /map/ are available on the LPO Mission rapaces and Faune Isère sites. Foremost, the following article by Françoise Chevalier deserves a particular attention:
• Françoise CHEVALIER, 2014 – Quatorze ans de recherche et de suivi des couples de circaète Jean-le-Blanc Circaetus gallicus dans le sud-est du département de l’Isère [Fourteen years of research and monitoring of Short-toed Eagle in the southeast of the Isère Department] // Le Bièvre, tome 26: pp. 26-33. – (Fr).
Also, please refer to the latest annual review:
• Françoise CHEVALIER, 2015 – Circaète Jean-le-Blanc Circaetus gallicus. Etude et suivis en Isère (38). Bilan 2015 [Short-toed Eagle. Research and monitoring in Isère. Summary for 2015] : 4 p. – (Fr).