Read the latest updates from our Cuckoos on their epic migration between the UK and tropical Africa, or track their movements in real-time on our Cuckoo migration map.
Hafren, took a rather leisurely western route through Morocco, Mauritania, Senegal and on through Burkina Faso and into central Nigeria.
In recent days he has suddenly headed a further 1,500 km (932 miles) south-east into central Gabon.
He is currently in the Ivindo National Park, a UNESCO World Heritage Site which is home to a large number of endangered species including Forest Elephant, Western Lowland Gorilla, Chimpanzee and a multitude of birds such as Grey Parrot and Grey-necked Rockfowl.
Since crossing into Nigeria from Benin a week ago, Hafren made a move towards the lush shores of the Niger River.
Currently just north-east of Kainji Lake, he is following a section of the Sokoto, a tributary of the Niger, heading eastwards into the country.
For much of the last month, Hafren has been in Burkina Faso, but in recent days he has made a significant move to the east.
Since leaving Burkina Faso just two days ago, he has passed through northern Ghana, then Togo, and as of this morning he is in the Borgou Department of northern Benin. Our satellite signal currently shows him to be close to a stretch of the Bouli River, a few miles west of the Trois Rivières forest reserve.
Hafren left Senegal and headed east across south-west Mali, into Burkina Faso.
He is now in an agricultural area between the Mouhoun, or Black Volta, River and the Kaboré Tambi National Park. This protected area was formerly known as Pô National Park and was renamed in honour of a park ranger who was tragically killed by poachers in 1991.
Hafren, like Cuckoo Wilfrid, is still in Senegal, but has moved slowly southwards in recent days.
He is currently by the River Gambia, just to the west of the Forêt de Diambour, in the Tambacounda region.
Amazingly, Hafren and Wilfrid are just around 40km (24 miles) apart from one another.
Five days ago we could see that Hafren was approaching the border of Western Sahara from Morocco.
Since then, he continued his journey south, covering a further 1,660 km (1,030 miles).
He then made his way along the coast of western Mauritania and our most recent signal, received at 6.24am today, shows that he has now headed inland, and is in central Senegal, having spent some time in the relatively lush environs of the Sylvo-Pastorale National Park.
Hafren has now left Spain and is making his way south along the North African coast.
His route saw him setting off across the sea, leaving the Spanish mainland west of the famous Doñana National Park, before arriving on the Moroccan coast just to the north of the city of Agadir.
At 7.36 this morning, we received a signal showing that he was close to the Western Sahara border. In the last 48 hours Hafren has covered around 1,220 km (758 miles).
Our latest data received from Hafren, at 7.54 this morning, shows that he is presently following the Malachel River, a tributary of the Guadiana River in Extremadura, Spain.
Currently midway between the cities of Cordoba and Badajoz, he has covered some 570 km (354 miles) since leaving the Soria province two days ago.
After being tagged in Worcestershire on 18 May, Hafren remained in much the same area until a few days ago.
He finally got the urge to leave, and in just two days completed a mammoth 670 km (416 miles) journey, taking him to the outskirts of Limoges in southwest-central France.
From here he swiftly continued a further 585 km (363 miles), crossing the Pyrenees just to the south of Lourdes and arriving in the Spanish province of Soria, in the Castile and León region.
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