索普还证明，苍头燕雀学歌是有所选择的。

Thorpe also showed that the chaffinch is selective imitate.

因为我和他一样对苍头燕雀的歌声着了迷，他就邀请我加入他的研究小组。

Because I Shared his fascination with the chaffinch song, he had invited me to join his research group.

研究人员对30000窝鸟进行了分析，他们发现，苍头燕雀和旅鸫的产蛋期比上世纪60年代提前了大约一周。

Analysis of 30, 000 nests shows that birds such as the chaffinch and the robin are laying their eggs about a week earlier than in the 1960s.

我们一生中都有鸟儿生活在我们周围，然而我们的观察力是如此微弱，以致我们中间许多人弄不清楚苍头燕雀是否全唱歌，说不出布谷鸟是什么颜色。

We have been surrounded by birds all our lives, yet so feeble is our observation that many of us could not tell whether or not the chaffinch sings, or the colour of the cuckoo.

我同湖泊、群山、樱桃树、割草人以及一株剪过枝的酸橙树上的那只看不见却听得到喳喳叫声的苍头燕雀之间，存在着感官上的直接联系。

There was a direct sensuous contact between me, the lake, mountains, cherry trees, mowers, and a certain invisible but noisy chaffinch in a clipped lime tree.