Tuesday 8th December comments: As we mentioned in yesterdays blog post, some seabirds remain all year round in Isle of May waters but interestingly Eider duck numbers have increased and displaying has started, but why and is this early?
The Isle of May is one of the most important Eider colonies in the country with the last census revealing 1,200 nesting females (population graph shown above). Eiders are the UK’s heaviest duck and fast flyer at level flight. During the winter months vast number congregate in places like the Firth of Forth as the breeding season starts from April on remote predator free islands like the Isle of May (although very small numbers can be found nesting on the mainland). Eiders are diving ducks which feed on a variety of prey but especially on crustaceans and molluscs.
At this time of year birds are in fine plumage, the…
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