Wild Curlew Chick Welfare and Nest Predation

Curlew are the UK's most at-risk breeding bird, with populations having declined by 48% since the 1990s. Chick survival is critically dependent on reducing nest predation and maintaining appropriate upland habitat.

Key Facts

Eurasian curlew (Numenius arquata) have declined so severely they are now Red Listed in the UK and classified as globally near threatened
Chick mortality from predation by foxes, crows, and mustelids is identified as the primary driver of breeding failure in many upland populations
Curlew have one of the longest incubation periods of UK waders (28-30 days) and long chick dependency periods, creating extended vulnerability
Head-starting programmes, in which eggs are incubated artificially and chicks reared to fledging before release, have been trialled as an emergency conservation measure
Curlew choose nesting sites with intermediate vegetation heights - too short provides no cover, too tall limits chick mobility
Upland afforestation in the 20th century has significantly reduced curlew habitat and increased corvid and fox populations at breeding sites

Welfare Considerations

Curlew chick welfare involves both the experience of individual chicks and the population-level welfare implications of a species in severe decline. Failed nests result in egg and chick deaths that represent individual welfare harm, while predation of chicks causes suffering at the moment of attack. Adult curlew invest enormously in each breeding attempt - a failed clutch after 30 days of incubation represents significant resource loss that affects adult condition. Head-starting programmes raise welfare questions about artificial rearing conditions for chicks and the welfare implications of captive rearing before release. However, given the severity of population decline, intervention is widely regarded as necessary. Predator management programmes at curlew breeding sites, while ethically complex regarding predator welfare, can significantly improve chick survival at the population level.

What You Can Do

Support curlew conservation charities including the Curlew Country project and RSPB
Avoid disturbing upland moorland during the April-July breeding season
Follow the Curlew Action network and report curlew sightings to contribute to monitoring
Support upland grazing management practices that maintain appropriate nesting vegetation
Engage with planning consultations that may affect upland habitats used by curlew
Advocate for curlew-friendly management of upland estates and common land