Ruddy Shelduck, a regular migrant species in NE Italy

Ruddy Shelducks Tadorna ferruginea are regular with single figures in NE Italy during both their moult migrations. The Po Delta and the Garda lake are particularly involved fom early August to late September. If you connect the Po Delta and the Garda lake with a line, you may hipothesize both the origin (breeding grounds) and the moult site to where they are heading to gather. So it seems plausible that Ruddy Shelduck passing through NE Italy in both ways are coming from the Balkans. As about the moult site, the closest one to Italy is the Klingnau  reservoir, where 370 Ruddy Shelduck have been recorded at end summer 2004, while in the previous years, between August and November, they peaked at 140 in 2000, 220 in 2001, 250 in 2002 and 330 in 2003. Ruddy Shelducks return to NE Italy from their moult migration between mid-November to mid-December, probably heading to their wintering grounds more to the East. Unfortunately, the Swiss authorities have resolved to wipe out the species in the country - an ill-planned project if the Swiss population is not entirely feral in origin. But Swss ornithiologist state: "our" Ruddies are NOT wild birds.” “the Ruddies seen in Switzerland are ALL feral”, even there are not evidences at 100% that this is true.

5 Ruddy Shelducks, Valli di Comacchio, Po Delta, Ne Italy, 11 December 2004, photo by Menotti Passarella

4 Ruddy Shelducks, Valli di Comacchio, Po Delta, NE Italy, 22 November 2005, photo by William Vivarelli

3 Ruddy Shelducks, Valle Santa, Po Delta, NE Italy, 19 September 2006, photo by Giorgio Leoni

11:32 - Monday, September 25, 2006 - post comment

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Anonymous - 10:49 - Wednesday, January 10, 2007

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