Whitethroat

Song-flight display

The male whitethroat performs one of Britain’s most endearing bird displays: the song-flight. He pops up from cover, rises jerkily a few metres with a fluttery wingbeat, then parachutes back down, all the while producing a fast, rattling, rather scratchy song. The white throat is puffed out conspicuously during this display. On warm May days, male whitethroats seem to launch themselves from every hedgerow.

The 1969 crash

In autumn 1968 and spring 1969, the whitethroat population of Britain collapsed by approximately 77% in a single year — from perhaps 3.5 million pairs to under a million. The cause was severe drought in the Sahel zone of sub-Saharan Africa (the wintering and migration staging area), which killed enormous numbers on the wintering grounds. The whitethroat became the first bird species for which a link between African climate and British population trends was established, pioneering the study of migrant bird declines.

Habitat preferences

Whitethroats are birds of scrub and tangled vegetation — bramble, nettles, dog rose, and overgrown hedgerows. They are most abundant where these habitats border fields or open ground. Hedgerow removal in the mid-20th century substantially reduced available breeding habitat in Britain, compounding the Sahel-driven decline.

Identification

The male is identified by the white throat contrasting with grey head, warm chestnut-brown wings, and pinkish-buff underparts. Females are browner overall but share the white throat. The whitethroat’s restless, low-flying movement through scrub is typical.