Tags
Arctic tern, autumn bird migration, autumn migration, bird migration, birding, birdwatching, British birds, Sterna paradisaea
When an exciting alert appeared in my local birding WhatsApp group on Friday 2 October, I was off. First, I had to run for the train – I’m old, I never run, but there are only two trains an hour to Cardiff’s northern reservoirs and I was conscious that migrating birds often don’t linger long.

And, at first, I thought that was exactly what had happened because, when I got to Llanishen Reservoir, I was told the Arctic tern had just flown off high to the south. Fortunately, as you can see from my photographs, after about 10 minutes, the bird reappeared and proceeded to entertain me and several other birders with its aerial display.

This particular Arctic tern had an interesting routine. It was favouring the northern end of the reservoir, where it would fly back and forth over the water in its constant search for food, occasionally dipping low to the water, sometimes splashing right in. When it eventually caught a sprat, it would fly to the reservoir embankment, perch on the stones to eat its prey, and let the food digest for 5 to 10 minutes before taking flight to repeat the process once more.

By the end of the day, the Arctic tern (Sterna paradisaea) had flown off, hopefully well fuelled to continue its epic migration journey – the longest of any bird – to spend the southern summer in Antarctica.



























