Friday, February 11, 2022

There were several small pools in the dunes at Achnahaird, but there was no bird life on or around them.


There was, however, a dead fish. Back at home it took me ages to identify it as a Grey Triggerfish (Balistes capriscus). I forgot to measure it, but the fish was probably 8 to 10 inches in length. 


The clue to its identity was the spine at the front of the dorsal fin which is raised as a means of defence against predators. The mouth is small, but the powerful jaws and teeth enable the fish to deal with a diet of shellfish and crustaceans.


In the UK it was once thought to be confined to southern Britain - but is now seen more frequently in northern waters. The website where I found my information (britishseafishing.co.uk) has a photo of one found on the Isle of Tiree in 2014.

On the way home we stopped briefly at Ardmair. A buzzard was sitting on a bloodied prey item (feathered, I think) on the stones but it flew off when I got out of the car. 


It didn't go far, flying low to the far end of the beach - and as it did so, a great northern diver that was fishing just offshore there called once from the water.  I can't remember if this was the rising call or the tremolo, but I'm trying to work out if there is a link between these divers calling and the close presence of a raptor.

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