Foulshaw Moss Nature Reserve in Cumbria has recorded its highest osprey chick count, with five young birds receiving leg rings and tracking tags following their hatching at the site.
Cumbria Wildlife Trust attributed the growth to the arrival of an additional breeding pair at the reserve. The newly established pair, identified as Blue 717 and Blue 476, successfully reared three chicks this season after producing one offspring in their initial year at the location. The reserve’s longstanding breeding pair, known as Blue 35 and White YW, also contributed to the record by producing two additional chicks, demonstrating continued reproductive success despite their advanced age.
Paul Waterhouse, the trust’s reserve officer, noted that the established pair is believed to be approximately 18 years old, approaching the typical 25-year life expectancy for ospreys. He characterized each breeding season involving the older pair as increasingly noteworthy given their age and longevity in the location.
The previous record for chick production at the reserve stood at three birds in a single season. Blue 35 and White YW first arrived at Foulshaw Moss in 2013 following an extensive habitat restoration initiative at the South Lakeland site. Cumbria Wildlife Trust has cautioned that the newer nest, positioned in close proximity to the boardwalk, remains susceptible to visitor disturbance and has encouraged guests to observe from the designated hide with appropriate consideration.
The ringed and tagged birds facilitate ongoing conservation efforts by allowing researchers to monitor their movements and gather life history data. The osprey population is expected to depart the reserve in September for migration to the Iberian Peninsula or West Africa.