Piltanton Burn - 9.xi.23
Sunny spells, light westerly, low tide 3.09pm
Disturbance
was the unwelcome theme of this visit. Upheavals to the beach were immediately
obvious when I arrived. Judging by the wide deep tracks, someone had brought heavy
machinery to take away a lot of the accumulated heaps of seaweed from the
tideline. And in the process, they also uprooted pioneer plants, such as Sea
Rocket and Common Orache that were beginning to colonize the sand, and
disturbed the naturally stratified deposits beneath, doing untold damage to the
whole foreshore ecosystem. While it may be laudable in principle to make use of
fertilizer that is not derived from fossil fuels, any net gain is rather
undermined if you trash the environment while you do it. To add insult to
injury, some narrower tracks suggested that more joy-riding had also happened,
although by motorbike this time instead of the 4x4 that is still stranded
mid-channel like a metal hippo. Indeed the new tracks passed by that flooded
wreck and continued on the far side of creek.
I headed
west to check the fully exposed riverine mudflats first. A couple of Linnets
flushed from the fringe of the dunes but they proved to be almost the only
passerines I encountered along the upper shore, now that the rich source of
invertebrate food provided by freshly washed-in seaweed was largely absent. Thirty
or so Curlew were feeding on the cattle pasture inland, along with the usual
mixed gang of corvids and about twenty Common Gulls. Whether the recently
spread slurry is of benefit to them or otherwise I am uncertain. But certain it
is that nutrient run-off from muck-spreading into the river and thence to the
sea has an impact on marine ecosystems that can be seen from space when algal
blooms proliferate and choke the rest of the planktonic food-chain.
I tried to
forget about human destructiveness and concentrate on counting ducks and waders.
A couple of Snipe were hunkered down at the base of reeds and there were the
usual scattering of Redshank, Oystercatchers and more curlew. Of most interest
perhaps were a flock of Wigeon, whistling as they preened and dabbled. That is
one of my favourite sounds in nature and always takes me back to my formative
birding years at Dublin Bay. I was about halfway through estimating their
number when a guttural buzzing noise came to my attention. It grew steadily in
volume and resolved into a pair of trail-bikes approaching from the south along
Luce Sands, heading towards Torrs Warren plantation on the far side of the
main creek. No doubt these were the makers of the tracks described earlier. The
wigeon heard them too, raising their heads and tensing ready for flight. Some
gulls took to the air and I prepared for everything to flush, but luckily the
bikers turned away into the trees before getting too close and we could all
relax again.
For once
there were no dog-walkers about, so I headed downstream then to survey the
exposed stony shoals. More wigeon were there, making a site total of 165. A
single Grey Plover and about 30 Golden Plover were nice to see, but there was
an absence of smaller waders. I did spot a large flock of several hundred wheeling
above the distant sandflats, colours changing as they banked towards the
setting sun, but too far to identify. Probably Knot or more Golden Plover,
perhaps the flock that visits West Freugh where the American Golden Plover was
seen recently. With light fading fast, I retreated to the car, gulls beginning
to stream overhead from inland to roost on the coast. Hopefully they had an
undisturbed night’s rest.
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