But the app also identified birds like chimney swift, northern flicker, fish crow, killdeer and gray catbird.

但这款应用程序还识别出烟囱刺尾雨燕、北美榆斑啄木鸟、鱼鸦、双领鸻和灰猫嘲鸫等鸟类。

The gray catbird, on the other hand, is an expert at rooting out the very same parasites.

另一方面，灰猫头鹰是根除相同寄生虫的专家。

The report says the common housecat is the number-one killer of fledgling gray catbirds near America’s capital.

报告称，普通家猫是美国首都附近灰猫鸟的头号杀手。