Showing posts with label Colin cross. Show all posts
Showing posts with label Colin cross. Show all posts

29 December 2011

Ringed birds in the Gambia part 3!

The increasing work done in Africa to find out about our declining migrants is picking up pace, with the BTO Cuckoos still going strong and the Out of Africa project. As mentioned in a post previously, a team of volunteer ringers have just returned from their third trip to Kartong Bird Observatory, The Gambia, in an attempt to gain more knowledge on our European passerines and gain more information on African birds.


I was part of the team, my second trip, and we managed to catch 1200 birds of 121 species during the 10 day ringing session. Good numbers of herons, raptors, terns, shrikes and African passerines were caught including 70 Long-tailed Nightjar and 50 Jacana. Most importantly 250 Western Palaearctic passerines were caught including Whitethroat, Chiffchaff, Melodious Warbler, Subalpine Warbler, Reed and Sedge warbler and a Nightingale (but without a data logger!). We also saw an Osprey with a satelite tag but were unable to read the colour ring.


Some birds were doing some very interesting moult while in Africa - one 1st winter Chiffchaff was actively finishing off a complete primary moult. As we know neither adults or first year birds are supposed to moult in their wintering quarters.

The team also proved some direct migration thanks to birds that were already ringed by other ringing schemes. The first was from a Sandwich Tern with a BTO ring that had been ringed on Coquet Island, Northumberland this year. We also caught a Sandwich Tern from Helgoland, Germany and a Sedge Warbler wearing a French ring. The next trip in January will focus on terns, waders and Acrocephalus warblers in the reed beds.

For more information on Kartong Bird Observatory see www.kartongbirdobservatory.org.

This was an amazing experience and if you wish to be considered for future trips (probably 2013) please contact Jez Blackburn (jezblackburn@sky.com) for more details and an application form. Note - you need to be a ringer and have good knowledge of moult!

Top picture- Squacco heron. Middle picture - Woodchat Shrike. Above - The team

18 November 2010

New Bird Observatory in the Gambia

Volunteer ringers from the UK have just returned from their first trip to the Kartong Bird Observatory, to help understand bird demography in the Gambia. During the 11 day trip more than 800 birds were processed and measurements taken. The majority of the birds ringed were African but there were some Palearctic migrants which were just arriving including Blackcap, Garden Warbler, Olivaceous Warbler, Yellow Wagtail, Sedge and Reed Warbler.


During the nights it was very dark, due to the new moon and provided great lamping conditions for Long-tailed Nightjar, Painted Snipe, Senegal Thick-knee and Spur-winged Plover. Local bird guides and birders will be able to take part in reporting leg flagged Spur-winged Plovers throughout Gambia and the movements of the whoosh netted Hooded Vultures will be very interesting (below).



Ringing demonstrations were run mid week to introduce the local school children to bird conservation and it was received very well with many fascinated faces. Some notable birds were Yellow-crowned Gonolek (pictured), Levaillant’s Cuckoo and Blue-breasted Kingfisher (1 of the 6 species of kingfishers caught).


Future annual expeditions will provide more valuable data, with the next trip being March 2011. Maybe more new birds will be added to the Gambian list like Cassin's Honeyguide as on this occasion.