Wednesday, 27 June 2018
Posted by AN AMERICAN IN EUROPE at 09:28
Posted by AN AMERICAN IN EUROPE at 09:27
Friday, 15 June 2018
Large-scale population estimates of species are used for several reasons, including the assessment and protection of important sites. However, determining a national population requires extensive surveying and using methods that allow counts to be scaled up to the number of birds actually present and across a larger area.
This new BTO study looks at different methods used to estimate the population of Nightingales in the UK. Nightingales have declined by 61% in the last 25 years and therefore determining which sites contain the largest populations is vital. The study focused on 2733 2x2 km squares, 2356 where Nightingales were known to be, as well as randomly-chosen squares whose selection was stratified based on habitat suitability. By using different analytical methods, the final population was estimated to be between 5094 and 5938 territorial males, of which only 55-65% were counted during the surveys. It is therefore important to consider how to fully control for variability in detection and for birds outside of surveyed areas when estimating national populations.
The study also highlighted the importance of Lodge Hill SSSI for breeding Nightingales, which was designated for its nationally important population of the species, based on the results presented in this paper.
Posted by AN AMERICAN IN EUROPE at 14:57
We've been busy over the past few weeks catching and tagging ten more Cuckoos and they are already on the move! Knepp and Lambert, caught on the Knepp Estate in Sussex, have both crossed the English Channel and are now in France. Bowie, aptly named by Chris Packham, and Cameron, both from the New Forest, and Thomas from Thetford Forest have also made it to France. The 2018 class of Cuckoos were all caught at breeding grounds in the south and Midlands of England and we hope they will help us understand more about why the Cuckoo population in these parts of the UK is faring so badly. We need sponsors for all our new birds so visit the website to choose your favourite. You can also help us by forwarding this email to interested friends and family members and encouraging them to sponsor a bird.
Posted by AN AMERICAN IN EUROPE at 14:55
Wednesday, 13 June 2018
Friday, 8 June 2018
Posted by AN AMERICAN IN EUROPE at 07:28
Posted by AN AMERICAN IN EUROPE at 07:27