Named by the Suffolk Wildlife Trust as he was tagged at Carlton Marshes in Lowestoft, part of the beautiful Suffolk Broads and a nature reserve managed by the Trust.
- Saturday, May 12, 2018 - 08:00
- Tagging Location:
- Carlton Marshes, Suffolk Broads
- Age when found:
- Over one year
- Satellite Tag No.:
- Wing Length (mm):
Carlton II's movements
11 Nov 2019 - Carlton II arrives at his wintering grounds
Carlton II didn't stay long in Equatorial Guinea before covering the last 280 km (174 miles) and reaching his new location in central Gabon. He is now 17 km (10 miles) south of the small town of Booue and just south of the Equator. He is in exactly the same area as he spent the 2018/19 winter, arriving on November 7 and departing on February 3.
07 Nov 2019 - Carlton II in equatorial Africa
True to last year's timings, Carlton II has moved onwards dring the first week of November. This year he has flown slightly further south, bypassing Cameroon, and settling on nearby Equatorial Guinea to feed up before he, presumably, presses on into Gabon andthe dense forest of the Congo Basin as last year. His most recent trip covered over 1035km (645 miles) and has taken him close to the town of Anisoc.
30 Sep 2019 - Carlton II pushes East to Nigeria
Carlton II has started the next stage of his migration, leaving his last location in Mali and flying 1,434 km (891 miles) East to Nigeria, via a brief stop-off in Benin. Carlton II is now in the Dagida Game Reserve in western Nigeria. In 2018, Carlton II spent two and a half weeks in this game reserve from mid October to early November before pressing on through Cameroon to Gabon, where he spent the winter.
09 Sep 2019 - Carlton II crosses into Mali
Over the weekend Carlton II left Senegal and has flown 534 km (332 miles) east into Mali. He is now in the south eastern part of the Kayes region of Mali, approximately 145 km (90 miles) north west of the capital, Bamako. Cuckoos Valentine and Senan are over the border in Burkina Faso while PJ and Tennyson are more than 1,500 km further east in Nigeria.
04 Sep 2019 - A challenging autumn migration
The last few weeks have been quiet and for those who had not yet completed their desert crossings, it looks like the challenging conditions have claimed more of our tagged Cuckoos.
Unfortunately no further signals have been received from Knepp. From the temperature data and movements at the time, he was alive on 12 July, when we last heard from his tag. Though the battery charge had been low for a few days, there is no evidence of long term battery decline so we can't be sure what has happened to him - either he, or the tag, appear to have died suddenly.
Lambert, who was still in France, has not moved on south and signals on 21 August showed high temperature fluctuations across the day, indicating the bird's body temperature and behaviour were not regulating it. We've heard nothing since then, and his tags battery charge had suddenly dipped, all of which leads us to believe he has likely died.
Unfortunately the challenging conditions have also impacted on Nussey who has already attempted two trips to Africa and retreated to Europe. Abnormally low temperatures were received at the time of the last messages (16 August), having previously been fine. He was not migrating at that time, so the low temperatures were not due to high altitude, and the battery was also much lower than previously, further suggesting he was dead.
The droughts and exceptionally high temperatures in Europe appear to have proved difficult for our Cuckoos this year, however the five south of the Sahara are still regularly transmitting. Valentine, PJ, Carlton II and Tennysons' tags have all sent signals during September and the last signals received from Senan's tag were at the end of August and show him still in Burkina Faso.
Donate to help us run the Cuckoo Tracking project.
The BTO Cuckoo tracking project is supported by Essex and Suffolk Water and the BBC Wildlife Trust.
Information on this page is for illustrative purposes only and should not be reproduced without permission
© British Trust for Ornithology.