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Osprey Details

5F/Seren (Blue 5F)

Darvic Leg	R
BTO Ring
Ringing Date (if known)
Gender	F
Hatch Date (or Year)	2012
Male Parent	08(01) / U08 (Red 08)
Female Parent	30(05) (Yellow 30)
Natal Nest	Rutland Site K
Translocated?
Breeding Bird (with public breeding records)?	True
Deceased?
Comments Breeding female at Clywedog 2020- . Regularly seen in The Gambia in winter.

References and Sightings

Type	Date	Osprey	Reference Details
URL	14-Feb-2026	5F/Seren (Blue 5F)	Facebook - Fansu Bojang - 14-Feb-2026: Photos © Fansu Bojang of Blue 8R3 and Blue 5F (Seren), at Kartong South, The Gambia, part of osprey surveys carried out in The Gambia
URL	12-Jan-2026	5F/Seren (Blue 5F)	Twitter/X - Andy Young - 12-Jan-2026: Photos © Andy Young of Blue 5F Seren and Blue 019 in The Gambia
URL	07-Oct-2025	5F/Seren (Blue 5F)	Website - Bywyd Gwyllt Glaslyn Wildlife - 7-Oct-2025: News of Mrs G's last brood all returning and Blue 497 attempting to nest in South Wales in 2025
Article - Print	17-Jul-2025	5F/Seren (Blue 5F)	Leicestershire and Rutland Wildlife Trust. Rutland Water Wildlife Report 2023 (Osprey report including off-site nests and returns, pp.10-17. Note: we have been alerted to some possible typos/errors in the BTO ring data in the report. We are currently in the process of verifying the data, and will update any errors in due course.)
URL	30-Jan-2025	5F/Seren (Blue 5F)	Twitter/X - Andy Young - 30-Jan-2025: Photos © Andy Young of Blue 5F (Seren) in The Gambia
URL	18-Dec-2013	5F/Seren (Blue 5F)	Website - Rutland Osprey Project (via Wayback Machine) - 18-Dec-2013: Amazing news from The Gambia (first sighting of 5F(12) at Tanji Marsh as a juvenile)
URL		5F/Seren (Blue 5F)	LRWT Blog - March 2023: Rutland Ospreys in Winter - Tim Mackrill
Book		5F/Seren (Blue 5F)	The Osprey (Poyser monograph) (Dr Tim Mackrill) p.55, p.66-67
Article - Print		5F/Seren (Blue 5F)	Jean-Marie Dupart. Senegal Osprey surveys - Identified Ringed Birds (financed by PROPANDION) (Private communication. Information published with permission.)

Breeding Seasons

	Year	Nest	Male Parent	Return Date	Female Parent	Return Date
	2025	Clywedog	Unringed (Dylan)	25-Mar-2025	5F/Seren (Blue 5F)	30-Mar-2025
	2024	Clywedog	Unringed (Dylan)	28-Mar-2024	5F/Seren (Blue 5F)	28-Mar-2024
	2023	Clywedog	Unringed (Dylan)	27-Mar-2023	5F/Seren (Blue 5F)	25-Mar-2023
	2022	Clywedog	Unringed (Dylan)	05-Apr-2022	5F/Seren (Blue 5F)	26-Mar-2022
	2021	Clywedog	Unringed (Dylan)	24-Mar-2021	5F/Seren (Blue 5F)	29-Mar-2021
	2020	Clywedog	Unringed (Dylan)		5F/Seren (Blue 5F)

Note: Bird may have had other breeding seasons not publicly reported on.

Publicly Known Offspring

	Ring	Id	Leg	Gender	Hatched	Male Parent	Female Parent	Nest
	Blue 7M2	Blue 7M2	R	F	2025	Unringed (Dylan)	5F/Seren (Blue 5F)	Clywedog
	Blue 7M3	Blue 7M3	R	F	2025	Unringed (Dylan)	5F/Seren (Blue 5F)	Clywedog
	Blue 8B1	Blue 8B1	R	M	2023	Unringed (Dylan)	5F/Seren (Blue 5F)	Clywedog
	Blue 8B2	Blue 8B2	R	M	2023	Unringed (Dylan)	5F/Seren (Blue 5F)	Clywedog
	Blue 8B3	Blue 8B3	R	M	2024	Unringed (Dylan)	5F/Seren (Blue 5F)	Clywedog
	Blue 8B4	Blue 8B4	R	M	2024	Unringed (Dylan)	5F/Seren (Blue 5F)	Clywedog
	Blue 8B5	Blue 8B5	R	M	2024	Unringed (Dylan)	5F/Seren (Blue 5F)	Clywedog
	Blue 496	Blue 496	R	M	2021	Unringed (Dylan)	5F/Seren (Blue 5F)	Clywedog
	Blue 550	Blue 550	R	M	2020	Unringed (Dylan)	5F/Seren (Blue 5F)	Clywedog
	Blue 551	Blue 551	R	M	2020	Unringed (Dylan)	5F/Seren (Blue 5F)	Clywedog

Note: Bird may have had other offspring not publicly acknowledged or reported on.

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