Goosanders have bred on the River Ouse in the north of the county for several years. As this is a fair way for their normal range in the UK this is certainly rather exceptional. Then in May 2019 there was a report of a female with seven well grown young on the River Thame near Haddenham. So maybe a indication that the population on the River Ouse was expanding.
Then in 2020 a pair bred on the River Thame and the brood captured on a trail camera. See below:
The video was recorded on 22nd June 2019. There are eight birds shown. The female is the bird that perches on the concrete platform first and has the bright coloured legs. The leg colour of the juveniles is much duller.
Thanks to Henry Manisty for allowing us to use his video.
For a previous post on Goosanders breeding in Buckinghamshire take a look at https://bucksbirdclub.co.uk/breeding-goosanders-in-bucks/