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|Friday 27th January 2006, 20:53||#1|
Join Date: Jan 2006
Location: Ardèche (France)
invasion of bird forest species in France
Good evening, I launch a call on this forum to obtain data concerning the surge of forest species observed to the course the autumn 2005 in order to write an article in the review "Ornithos" :
An surge of great spotted woodpecker, black, blue and coal tit, and other species forest were noted a little everywhere in France since this end of summer. The intensity and the extent of the passage of these species were by far higher than the normal but also earlier, indicating an invasive phenomenon marked good.
For example, much more great spotted woodpecker were noted on the Atlantic and Mediterranean littoral (Vendée, Languedoc-Roussillon, Ouessant, etc...), whereas the species is usually rare or irregular there. Other species seemed to follow this surge, in particular nuthatchs, and to a lesser extent the lesser spotted woodpecker, the tree creepers and the crested tit (see list of species being able to be concerned at the foot of the message).
In order to carry out a synthesis concerning this phenomenon, I am in the search of data allowing to encircle it and illustrate it in a relevant way: comparative data (precise) one year on the other (followed active migration, bush setting...), data leaving ordinary of share the locality or manpower observed, of the data relating to the age ratio of the birds observed as well as possible resumptions of rings allowing to locate the origin of the migrant populations...
Did you notice it elsewhere in Europe ?
Do you have some explanations ?
To thank you in advance send your data to me, by e-mail at [email protected]
NB: It is important to specify well the place, the date and the observer as well as possible remarks (usual statute of the species in the sector; comparisons with other years, etc).
Species concerned: the great and lesser spotted woodpecker ; the nuthatch; tits (coal, blue, black and crested) ; gold crest; tree creeper and eurasian jay (but it could be that the surges of bullfinches (of Komis in particular), of hawfinch and redpoll observed can be in relation to the phenomenon, just like the very marked passage of black flycatcher (and willow-warbler) in this end of summer; I thus am opened with all given relevant)
Thank you in advance,
|Saturday 28th January 2006, 02:01||#4|
Join Date: Jun 2005
Location: Taiwan, Yunlin County
Hi Vincent,a warm welcome to you from the BirdForum Moderators & Administration.Good to have you with us.
You may want to post your question in the Information Wanted forum where more people will see it.
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