StoneRoad2013's photos with the keyword: breeding
oaw - Glaslyn family tree
20 Mar 2023 |
|
An updated chart - produced by the Glaslyn project" showing the breeding success of MrsG at Glaslyn, North Wales.
Since 2004 she has produced 50 chicks, some of which have survived to breed themselves - indeed, there are now some "great grand chicks" that have been re-sighted [well, one seen in Senegal in 2022].
So, MrsG has hatched 50 chicks with two different males ...
Of these 16 have been known to survive to breeding age [or their first out-migration].
Between them, they have produced approximately 130 chicks [the grand-chicks].
of these, five are known to have bred, producing a dozen great grand chicks [one of which was seen in Senegal in 2022].
Bear in mind, not every chick is ringed, and not every breeding pair is monitored - the "net" has some very large holes in it - there are something like 250 breeding pairs in the UK alone. [and not every chick returns to breed in the UK, some migrate / breed in other areas of Europe].
That is an exceptional achievement !
NOT MY IMAGE : FAIR USE & PUBLIC INFORMATION
Jump to top
RSS feed- StoneRoad2013's latest photos with "breeding" - Photos
- ipernity © 2007-2025
- Help & Contact
|
Club news
|
About ipernity
|
History |
ipernity Club & Prices |
Guide of good conduct
Donate | Group guidelines | Privacy policy | Terms of use | Statutes | In memoria -
Facebook
Twitter