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Site fidelity of wintering henslow's sparrows

机译:亨斯洛麻雀越冬的现场保真度

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Little is known about the winter biology of many grassland bird species or about how alteration of winter habitat might be affecting populations. Therefore, we examined between-year and within-year winter site fidelity of the Henslow's Sparrow (Ammodramus henslowii) in Baldwin County, Alabama. In 1995, we banded 22 Henslow's Sparrows. In 1996, we banded 30 Henslow's Sparrows and recaptured 13 individuals a total of 20 times. All birds were recaptured in the site where they were originally banded. No movement between sites was detected. No birds banded in 1995 were recaptured in 1996. Our data suggest that Henslow's Sparrows tend to be site faithful within a winter, but not from one year to the Next.
机译:对于许多草原鸟类的冬季生物学或冬季栖息地的变化可能如何影响种群了解甚少。因此,我们研究了阿拉巴马州鲍德温县的汉斯洛麻雀(Ammodramus henslowii)的年内和年内冬季保真度。 1995年,我们为22支Henslow's Sparrows乐队演出。 1996年,我们联合了30头Henslow's Sparrows,重新夺回了13个人20次。所有鸟类都被重新绑在原先被绑扎的地方。未检测到站点之间的移动。 1995年没有带状鸟在1996年被重新捕获。我们的数据表明,亨斯洛的麻雀通常在冬天(而不是从一年到下一年)忠实地生活。

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