Welcome to the LDV NNR ringing blog, this blog is designed to share the experiences, findings and tales from a group of dedicated ringers. We specialise in conservation orientated research projects, largely focusing on wildfowl, waders, owls and birds of conservation concern, in and around the Vale of York NNR's.

NB - Whilst the purpose of this blog was initially designed to cover our nationally important wildfowl ringing activities, it now also features wildlife and work posts, explaining how we manage the NNR for both wildlife and people.

For daily sightings please visit our Twitter account: https://twitter.com/ldv_nnr (@LDV_NNR)

For details of events, volunteer tasks and wildlife images please visit our Facebook account: https://www.facebook.com/Lower-Derwent-Valley-Skipwith-Common-NNR

Friday 13 May 2022

05/05/22 - Whimbrel roost

Following the departure of the Iceland bound Black-tailed Godwits, the last few weeks have all been about our passage Whimbrel as they move through the reserve, with the peak count occurring around the 1st May each year. 

We’ve been counting the roost since the mid 1980’s, and have been studying the birds in more depth since 2004 - since then our team have ringed over 130 individuals as well as radio and satellite tracking a small sample. On average most individuals stay in the LDV for around eight days, feeding on worms and leather jackets (cranefly larvae), in order to almost double their body weight for their onward migration to Iceland and northern Europe.

Whilst it was good to ring a new sample this year, it was also pleasing to catch an old friend – an individual originally ringed back in 2008 (already at least two years old at the time of ringing), meaning it will have now clocked up over 220,000 km of air miles between the LDV, Iceland and the wintering grounds in Guinea since that time.