Circaetus gallicus information navigator

These scenes of life in Short-toed Eagles’ nest were fixed by Bernard Joubert in Haute-Loire /map/ this year:

Area: southern Auvergne. Altitude: 870 m above sea level. Tree: pine Pinus sylvestris. Height: 6 meters.

The egg was laid near the 8^th of April, the hatching happened around the 24^th of May. The young bird took off the 30^th of July, early afternoon. He was 67 days old. It was the twelfth succesful take-off in this site in 14 years.
The first visit – very discreet-happened when the chick was 10 days old. Between the 21^th of June and the 30^th of July, nine observatory sessions (circa 30 hours). Here is a photografic summary.

Bernard Joubert

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.

Please read the text written by Guido Premuda together with Andrea Corso dedicated to determination of Short-toed Eagle’s age and sex by plumage characters: Il piumaggio del Biancone: età, sesso e morfismo (It) which could be used as a hand book for the field work.
Also the photo and a list of full texts of Premuda’s articles dedicated to Short-toed Eagle can be found here (the source is his own website – Sunbird.it):

• PREMUDA G., 2004 – Prime osservazioni della migrazione primaverile “a circuito” del Biancone, Circaetus gallicus, nelle Alpi Apuane // Rivista Italiana di Ornitologia, 74 (2): 119-124. – (It).

• PREMUDA G., 2004 – Osservazione di un dormitorio di Biancone, Circaetus gallicus, e considerazioni sul piumaggio degli immaturi // Rivista Italiana di Ornitologia, 74(1): 76-80. – (It) (translatable form).

• PREMUDA G., 2004 – La migrazione del Biancone Circaetus gallicus in Italia: stato delle conoscenze attuali. In: Atti del Convegno “Rapaci in volo verso l’Appennino” // Corpo Forestale dello Stato – Gestione ex ASFD di Lucca – Riserva Naturale Statale dell’Orecchiella, 21-24. – (It) (translatable form).

• AGOSTINI N., BAGHINO L., PANUCCIO M., PREMUDA G. & PROVENZA A., 2004 – The autumn migration strategies of adult and juvenile short-toed eagles Circaetus gallicus in the central Mediterranean // Avocetta, 28: 25-28. – (En).

• PREMUDA G., 2002 – Primi dati sulla migrazione post-riproduttiva del Biancone, Circaetus gallicus, nelle Alpi Apuane // Rivista Italiana di Ornitologia, 71(2): 181-186. – (It) (translatable form).

• AGOSTINI N., BAGHINO L., COLEIRO C., CORBI F. & PREMUDA G., 2002 – Circuitous autumn migration in Short-toed Eagle Circaetus gallicus // Journal of Raptor Research., 36(2): 111-114. – (En) (translatable form).

• AGOSTINI N., BAGHINO L., PANUCCIO, M. & PREMUDA G., 2002 – A conservative strategy in migrating Short-toed Eagles Circaetus gallicus // Ardeola, 49(2): 287-291. – (En).