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Posts tagged ‘geographical range’


Trends of Short-toed Eagle population in India

Feb 29, 2020 / Comment

Ten Bird Species Whose Populations in India Have DeclinedKunal Kambli in his recent post for The Weather Channel writes that Short-toed Eagle is among the species whose populations in India have declined in last years according to:

• SoIB 2020. State of India’s Birds, 2020: Range, trends and conservation status. The SoIB Partnership. Pp 50. – Short-toed Eagle. file (En).

Unlike others, the population of Short-toeds in India is settled. Although, there are no more or less exact evaluations of its current size, it is undoubtedly significant, and the species is under highest legal protection in the country. However, the short- and long-term negative trends are ascertained on the background of the global population trend estimated as stable. This is a kind of unpleasant surprise and causes of the local population decline deserve to be figured out and analysed in details.

 

ST Eagles in the West African Bird DataBase

Jun 28, 2019 / Comment

Short-toed Snake Eagle - Circaète Jean-le-Blanc on the WABDaB siteThis online database contains observations of birds in Western and Central Africa, including many records of Short-toed Eagles in Niger and Chad, i.e. in the traditional wintering area of the eagles from Europe and the Middle East. All records are linked to the map, some of them has photos taken in the wild, exporting data to MS Excel is available.

 

Articles on Short-toed Eagle on Natuurtijdschriften

May 26, 2019 / Comment

The Natuurtijdschriften site was already mentioned on HoverOverUs. Here we present to your attention some more articles published in different years and dedicated particularly to Short-toed Eagles:

• Bas VAN GENNIP & Bert DE BRUIN, 1996 – Nieuw voor Groningen: Slangenarend [New for Groningen: Short-toed Snake Eagle] // De Grauwe Gors, Vol. 23, No. 4: pp. 113-114. – Short-toed Eagle. file (Nl).

• Arno IZAAKS, 2007 – Ruim vijf weken een Slangenarend Circaetus gallicus in de duinen van Meyendel (En) [More than five weeks an ST Eagle resided in the dunes of Meyendel] // De Takkeling, Vol. 15, No. 2: pp. 114-116. – Short-toed Eagle. file (Nl).

• Chris VAN DEURSEN, 2010 – Slangenarend waarnemingen (Circaetus gallicus) in de regio [Observations of Short-toed Snake Eagle in the region] // Fitis, Vol. 46, No. 3: pp. 125-126. – Short-toed Eagle. file (Nl).

• Willem VAN MANEN & Rob G. BIJLSMA, 2017 – Slangenarenden Circaetus gallicus in Nederland: voorschot op een broedgeval (En) [Short-toed Snake Eagle in the Netherlands: progress toward breeding attempt] // De Takkeling, Vol. 25, No. 3: pp. 224-241. – Short-toed Eagle. file (Nl).

All documents with mentions of STE can be found using the site search.

 

Merged data on photographing Short-toed Eagles

Mar 31, 2019 / Comment

Best photos of Short-toed Eagle on Birds of Northern EurasiaAskar Isabekov has merged data from different birdwatching websites on the Birds of Northern Eurasia portal. This database allows to monitor appearing new pictures and observations of various bird species in several countries of Northern Eurasia, including Short-toed Eagles. At least 3 out of currently 12 regional sites were mentioned on HoverOverUs before.

 

Comparative studies of migration and distribution

Dec 8, 2018 / Comment

The authors of the following papers studied Short-toed Eagles among other Raptors. Here are the results of those comparative studies focused on monitoring of migrating birds and on distribution constraints:

M. PANUCCIO, M. GUSTIN, G. BOGLIANI, 2011 – A comparison of two methods for monitoring migrating broad-winged Raptors approaching a long water crossing // Avocetta, 35 (1-2): pp. 13-17. – Short-toed Eagle. file (En).

• J.L. TELLERÍA, G. FANDOS, E. TENA, R. CARBONELL, A. ONRUBIA, A. QNINBA, Á. RAMÍREZ, 2018 – Constraints on raptor distribution at the southwestern boundary of the Palaearctic: implications for conservation // Biodiversity and Conservation: pp. 1-17. (En).

 

Records at the species range boundaries

Aug 31, 2018 / Comment

Immature Short-toed Eagle in UK in 2014, by Roger StarbuckSeveral records of Short-toed Snake Eagle at the boundaries of the species range were reported this summer. Local birders informed about observation of an eagle again in the United Kingdom, at Ashdown Forest /map/ in East Sussex: it was seen several times since June 21st. Unfortunately, the age of that bird has remained unknown. Four years earlier, a young Short-toed Eagle had been observed at Morden Bog /map/, near Wareham.

Photos of Short-toed Eagle by Liudmila Pozhidaeva on the Birds of Siberia websiteAt the opposite side of the range’s northern boundary, not far from Barnaul /map/, the administrative centre of the Altai Krai, a Short-toed Eagle was recorded this year too. Photos of an adult Short-toed Eagle female by Askar Isabekov on the Birds of Kazakhstan websitePhotos of it are available on the Birds of Siberia website. This time it was an adult bird, as well as the previous one observed in 2016. Also, this summer has brought many encounters with ST Eagles to birders in Kazakhstan, just enjoy the pictures.

 

STE in Switzerland, the historical and current data

Dec 30, 2015 / Comment

More historical data about Short-toed Eagles in Switzerland can be found on a webpage of the journal Ornithologische Beobachter:

• Karl Daut, 1910 – Seltenere Vertreter der schweizerischen Avifauna. Der Schlangenadler – Circaetus gallicus (Gm.) [A rare representative of the Swiss avifauna. Short-toed Eagle] // Der Ornithologische Beobachter, VIII (1): pp. 1-3. – Short-toed Eagle. file (De).

The former and present state of the species in the Canton of Valais /map/ is described in the communication, published this year:

Lionel Maumary, 2015 – Nouvelle nidification du Circaète Jean-le-Blanc en Valais [New nesting of Short-toed Eagle in Valais] // Oiseaux.ch (Fr).

Ornotho.ch search results for Circaète Jean-le-BlancThe following web resource deserves to be mentioned again: the map of the sighting locations is available for the registered contributors of Ornitho.ch only. However, any visitor of the site can view the photo gallery. The most of the pictures of Short-toed Eagles represented there have been taken in Switzerland.