Cuckoo Tracking Project

Cuckoo on a post, by Mike Lane / BTO

Help us follow Cuckoos on migration and discover why they are in decline

We’ve been satellite-tracking Cuckoos since 2011 to find out why they are in decline:

Progress so far

We’ve learned lots of vital information, such as how the different migration routes are linked to declines, and some of the pressures Cuckoos face whilst on migration, but there is still much more to discover.

​What’s next

We now need to look more closely at how dependent Cuckoos are on, and how much their migration is linked to, the drought-busting rains of the weather frontal system known as the Inter Tropical Convergence Zone (ITCZ) as they move out of the Congo rainforest and begin to head back to the UK via West Africa.

Our Cuckoo Tracking Project is vital and it wouldn’t be possible without the amazing support from funders and sponsors.

Sponsor a Cuckoo

Watch the Cuckoos migrate on our map

Each Cuckoo’s tag sends us location data approximately every day, so we can follow them and learn more about their migration.

Time / skill required

  • Spend as much time as you like following each Cuckoo's migration on the map below - use the controls to animate or step through their movements.
  • No technical skills are required to support this project - just a love of Cuckoos.

Cuckoo movements from 01 May 2023 to 06 January 2024

View routes starting..
Cuckoo positions on
 
 
 
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Current Cuckoos

Bluey. Bluey

Bluey

ID: 242385
Status: active
Cuach Carran. Cuach Carran Map Pin.

Cuach Carran

ID: 242389
Status: unknown
Cuach Cores. Cores

Cuach Cores

ID: 242386
Status: active
Cuach Torc. Torc

Cuach Torc

ID: 242384
Status: active
George. George

George

ID: 242387
Status: active
JAC the Cuckoo JAC

JAC

ID: 213805
Status: presumed dead
Jasper. Jasper

Jasper

ID: 232668
Status: unknown
Joe, Cranwich Heath, 2022. PTT 232670 Joe

Joe

ID: 232670
Status: active
KP. KP

KP

ID: 242388
Status: active
Cleeve (2023 tagged Cuckoo) Michael

Michael

ID: 242426
Status: unknown
Sayaan. Sayaan

Sayaan

ID: 242502
Status: active
Trent Trent

Trent

ID: 242383
Status: active

View previously tagged birds

Latest updates

Trent moves West into Nigeria

29 Jan 2024

New updates received from Trent's tag early this morning show that he has flown 450km (280 miles) West from his last location in Cameroon to a new location in Nigeria.

He is now approximately 10km south of the town of Okada in Edo State, southern Nigeria. 

Trent reaches Cameroon

17 Jan 2024

Cuckoo Trent has flown 693km (431 miles) north west from Gabon to Cameroon, making him our most northerly tagged Cuckoo.

He is now a few miles west of the town of Nguti in south-western Cameroon, halfway between Korup National Park and Bangyang Mbo Protected Area. 

Trent continues north in Gabon

10 Jan 2024

Over the last few days Trent has continued moving north in Gabon and has just crossed the mighty Ogooue River.

He is now in a forested area approximately 10km north of the small town of Booué in central Gabon. 

Browse updates from our Cuckoos

Project Lead
Email Contact:
cuckoos@bto.org

Project timeline, contributions & findings

Project timeline

  • 5/11 - First round of five Cuckoos tagged, wintering sites in the Congo identified 
  • 3/12 - Different routes discovered on return journeys
  • 2016 - First scientific paper published on on the routes of our Cuckoos