Cannon-netting on Guernsey


This page contains 2 reader comments. Click here to view (latest Fri 12/11/10 09:38).

Earlier this year I had the chance to join members of North Thames Gull Group on a cannon-netting expedition to Guernsey. This was the second year the team had visited the island to help local ringer Paul Veron with his colour-marking project.

The expedition was a great success, with 1,008 Herring and Lesser Black-backed Gulls caught, 72 of which were already ringed, providing great recapture data. Many of these birds were also colour-ringed, which was the main aim of the exercise, and, while on the tip, we were also able to read plenty of colour rings on birds: our daily best was 121 individuals.

So do keep an eye out for one of our gulls — or any other colour-ringed birds — and track them down online at cr-birding or report them via www.ring.ac.

Related pages

Guernsey Guernsey
Herring Gull Herring Gull
Lesser Black-backed Gull Lesser Black-backed Gull

The information in this article was believed correct at the time of writing. BirdGuides accepts no responsibility for errors, or for any consequences of acting on information in the article. The opinions expressed are those of the author(s) and are not necessarily shared by BirdGuides Ltd.

hide section Reader comments (2)

Another great example of too many birds being ringed! I understand the data is important and getting the data back is difficult but these numbers are crazy!
   matthew stainthorpe, 12/11/10 09:22Report inappropriate post Report 
It's actually surprising how many birds you have to ring (or colour mark) to get back good numbers of recoveries or sightings. With big gulls the odds are slightly better, but for a long-term population study such as this a large marked population is essential. Cannon-netting is just the easiest way to reach the target number of birds needed. With a big team though, birds are processed quickly and efficiently so we were able to deal with these numbers.
   Mark Grantham (admin), 12/11/10 09:38

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