A great migration. It is a post-nuptial migration to remember the one that is happening this year because the thrushes, in a rather sustained and continuous way, are delighting all ornithology enthusiasts from the last decade of September to the first week of October, having reached the maximum peak in the traditional ornithological date of San Francesco, Saturday 4 October, respecting the appointment as happened for the province of Como where the popular ornithological hunting traditions hand down that the feast of the Madonna di Alzate Brianza appears the first Thrush of the autumn season (ie September 8, as happened this year). And so the migratory movement of other species also continues, such as the Blackcap which, at the FEIN Ornithological Observatory of Arosio, reached the remarkable figure of 1.171 ringings which took place only in September. No less is the Robin which, already in the first days of October, after a muted start, is redeeming itself with a good migration, as happens for the Blackbird. There is also the presence of the Frosone and the Fringuello which are observed in good numbers in Arosio as in other areas of northern Italy.
To them are added the first appearances of the Sparrow, of the Siskin, already noticed in the plains, of the Tordele and of the Redwing, observed high up in the hills. Among the small passerines we must add the movement of the Regulus and the excellent presence of the small Luì. It is not surprising then if some trans-Saharan species are still present in northern Italy such as the Northern Wheatear, the Whinchat and the Prispolone. Also the Starling and the Wood pigeon begin to be observed in small flocks, more or less numerous. The same thing goes for the Larks of which we have heard of the first observations of subjects in migration. Among the waders there is a good presence of the Snipe observed in the areas congenial to him and there are reports of sightings of Woodcock on the mountains above 1.500 meters.
Obviously the weather conditions influenced this migratory movement after the apprehensions of August, which were then overcome from September onwards. An example of this is the activity carried out at the Arosio Observatory where the month just ended is in the first position in the last five years of study as regards the number of ringings, leaving however unchanged that of the species analyzed, equal to one forty.
In fact, after the sun began to appear more constantly, the excellent passage of the species was favored, thus confirming their good state of conservation, thanks to a positive nesting that took place in the north of the western Palaearctic which is reconfirmed to be an important territory. for the reproduction of the bird capital. Only the wisdom of an intelligent sampling can preserve the consistency of our winged friends, eternal travelers of the sky.
10 October 2014
ANUU Migrators
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