茨城県におけるサバンナシトド Passerculus sandwichensis の捕獲記録
2000 年 49 巻 1 号 p. 55-58
詳細
2000 年 49 巻 1 号 p. 55-58
The authors captured a Savannah Sparrow at Myoginohana (35°57′28″N, 14°27′42″E) in Sakuragawa Villege, Ibaraki Prefecture, central Japan, on April 3, 1998. The bird was identified as first-year bird, because it had greater / median covert with broad beige edge and pointed rectrices, and because pre-breeding moult had occurred on parts of tertials, rectrices, head, breast and upper/ under coverts.
