The harbour at Aberaeron has been the scene of substantial change over the last couple of years as the flood defences are upgraded to reduce the very real risk of the town being inundated again. Long stretches of quayside have been fenced off, leaving me to peer through the mesh of the barriers at the scene below.
Pwll Cam, the sheltered inner harbour, would usually be bustling with small boats at this time of year. Today it is empty and almost dry, with house martins skimming the remaining pool of water while wagtails glean along the edge of the exposed mud. On the edge of the quayside, where in normal times folk dangle their legs and eat chips, large iron rings provide an anchor for mooring ropes.
In this newly protected habitat behind the fence, herring gulls have built a nest inside one of the rings, where two eggs are being incubated by an adult bird. Apart from the iron ring, the nest is mostly plant debris from the harbour, a cosy-looking fringe of moss and a few rotted strands of rope scavenged from the tide line. I watch as the other parent returns and they swap duties, with the new arrival tidying the nest before settling over the eggs.
Some 16 miles to the north, a second family of herring gulls is also taking advantage of our built environment. At Aberystwyth railway station, between the beer garden and the ticket office, an area of granite ballast lies fenced off. Tucked against the red brick wall of a disused platform, a nest has been established over several seasons – but when I visit today it is empty.
Fearing their predation I look more closely and realise that three chicks have already hatched and left the dubious protection of the scrape to hide – with perfect camouflage – in the shelter of a rail, while an adult bird stands guard nearby. The second parent arrives with much social noise, and the chicks immediately trot over – with impressive speed – and begin to beg. Perhaps predictably, the chick that is already the largest manages to get the biggest meal. There is probably a moral in there somewhere.
• Under the Changing Skies: The Best of the Guardian’s Country Diary, 2018-2024 is published by Guardian Faber; order at guardianbookshop.com and get a 15% discount
