The photo collection of the previous year has been continued in 2019. All individuals have their unique index like K11m, where the last letter means sex: m – male, f – female, if it is known for certain. This is the continuation of a story in pictures of permanent annual monitoring of Short-toeds in Northern Ukraine which has been made for more than 15 years.
Posts tagged ‘plumage’
This 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.
Snake eagle is one of the most elegant raptors in Europe. When observed at close range, one is amazed by the way it can change looks and attitudes. This can clearly be seen in these pictures taken in France (Massif central) in 2009, 2012 and 2016.
The excellent online database featherbase.info contains high resolution photos of bird feathers, various statistical data on their dimensions, useful comparing tools which allow to identify species with high confidence. Also, you can add pictures of your own finds there. Specific information on Short-toed Eagle is available on the separate page.
Although, this paper is rather old, it can be considered as a good example of a report on Short-toed Eagle rehabilitation. If all similar cases were described in such a detailed way, our knowledge on sexing and ageing of Short-toed Eagles would be much deeper:
• Theo van de MORTEL, 2006 – Voor het eerst een Slangenarend Circaetus gallicus geringd in Nederland [Male Short-toed Eagle found emaciated in The Netherlands in May 2006] // De Takkeling, 14 (3): pp. 232-235. – (Nl).
The article is available on the Natuurtijdschriften site now.
The compilation of the annual gallery for 2017 has been finished. Photos taken in Northern Ukraine depict well-known and new individuals of the monitored pairs. Only 36 out of thousands of pictures taken with the main purpose to regularly identify local Short-toed Eagles individually have been selected for the represented gallery.
Quite many articles dedicated to Short-toed Eagle are reprsented on the ResearchGate and not yet described on our site. Currently, we’d like to mark one, which is very fresh, raising a topic of georgaphic variations at the farthest border of the species range /map/ and questioning again the concept of Circaetus gallicus as a monotypic species:
• Shengrong Nathaniel NG, Les CHRISTIDIS, Jerry OLSEN, Janette NORMAN, Frank E. RHEINDT, 2017 – A new subspecies of Short-toed Snake-eagle from Wallacea determined from morphological and DNA comparison // Zootaxa, Vol. 4358, No. 2: pp. 365–374. (En).
The abstract of the paper available now is of great interest itself.