No.038 Teal Anas crecca L=37cm Rank : 2
Winter Visitor

A common winter visitor to the main stream and armlets of Asakawa River; usually the first duck visitor among all kinds of duck (in the latter half of September) that remains as late as May next year. As its Japanese name (gKo-gamoh for gLittle Duckh) suggests, the species is one of the smallest ducks in Japan. Male whistles cryc or creelycc, not loud but very clear, signalling its presence.

According to the results of our Kawasemi-Kaifs regular counts, observation number of the species has been rapidly decreasing since the mid-1990s in all parts of Asakawa River: upstream, midstream, and downstream.  For example, in downstream of Asakawa River, a total of more than 4,500 Common Teals was observed in 1993, while less than 1,000 birds were recorded in 2004; almost 80% decrease in about ten years. However, at Kawaguchi-gawa River, one of the armlets of Asakawa River, observation number has been on somewhat increasing trend, and the rate of decrease is less in Yudonogawa River than in Asakawa River and other armlets.


Photograph (click to enlarge)