Bluethroat

Voice

A highly varied, high-pitched song that often opens with a mechanical, accelerating ting-ting-ting-ting before running into rattles, bell notes and numerous imitations of other species. Sings from a reed stem or bush top and in a short, conspicuous song flight. Calls: a hard tack and a soft heet.

Identification

Breeding males show a bright blue throat, in cyanecula with a white central spot, bordered below by a black and a rufous band. A broad white supercilium. Crucial and usable in all plumages: the rufous tail base with a dark terminal band, flashing as the bird dives into cover. Females show a dark loral stripe and necklace, often with a trace of blue.

Confusion species

The Scandinavian red-spotted subspecies svecica has an orange-red spot and passes through in small numbers. Females and juveniles can recall Nightingale or young Robin, but the tail pattern with its dark terminal band is diagnostic.

Habitat

Rank reed with willow scrub, marsh edges, young saltmarsh and newly created wetland; the key is a mosaic of reed, bushes and open, wet ground. In Scandinavia the red-spotted form occupies the birch zone and tundra scrub.

Range and movements

Widespread from western Europe to Siberia. In the Netherlands mainly the Biesbosch, the IJsselmeer area, Flevoland, Zeeland and Groningen; numbers have risen sharply since the 1980s thanks to new wetland reserves.

• Breeding (summer)
• Winter
• Passage
• Migration direction
• dark = core range, pale = thinly spread

Where and when to look

Late March to mid-May, early in the morning, along reed fringes and young willow growth. Watch for the song flight: the male climbs at an angle and parachutes back down with the tail spread — usually the moment the rufous tail base becomes visible.

Conservation status

Not threatened (IUCN: Least Concern) and one of the clear winners of large-scale wetland restoration in the Netherlands. It remains vulnerable to static marsh management: old reed without bushes and wet bare ground is unsuitable.