But an exhaustive survey of the tanagers, a family of songbirds from Central and South America, shows no sign of a tradeoff.
但是对来自中美洲和南美洲黄莺家纳雀进行
一份详细
调查表明,这种鸟类在这两方面表现都很出色。
The black-headed grosbeak, too, is here, with the Bullock oriole, and western tanager, brown song-sparrow, hermit thrush, the purple finch, — a fine singer, with head and throat of a rosy-red hue, — several species of warblers and vireos, kinglets, flycatchers, etc.
黑头蜡嘴鸟也在这里,还有布洛克金莺、西部纳雀、棕色鸣雀、隐士画眉、紫雀——一位出色
歌手,头部和喉咙呈玫瑰红色调,——几种莺和vireos,kinglets,flycatchers等
种类。