Quite mild, a light NW wind with some heavy, snow, sleet and rain showers with some sunny spells in between.
This one has a damaged wing, it will do well to fly back across the Atlantic. Good luck..... |
While others just had a paddle - they really are a handsome Goose |
Sometimes when I walk along the shore I see something so familiar, that I forget that the logic of what I'm seeing may not be apparent to everyone (MD) This is an example:
Most of the Redshank feed on small invertebrates found in the small pools, channels and crevices between the rocks and mussels. But there are inevitably a few feeding higher up the beach on the mud. These are likely to be feeding on Blow Lugworms, but not whole worms, just their tail tips. The lugworm extend their tails above the mud to shed the waste mud that they have filtered any goodness out of, leaving the familiar "casts" on the mud surface. The tail tip is vulnerable and therefore has evolved to easily detach from the rest of the worm. A new tail extension then regrows, and although the tail tip will not be as nutritious as a whole worm, it will be a decent source of protein for a smallish wader. This clip begins with the Redshank grabbing a tail, washing it (probably only half of the detachable section), eating it then looking for the next worm actively casting.
When a worm is grabbed, it immediately contracts, this makes is wider and its body is held firm by its burrow sides, and shorter so any tail tip held becomes detached. This works well when the mud is relatively firm as it is here, but not so well in the soft mud, near the water's edge. That's why the serious worm eaters (Curlew, Godwits) feed close to the water's edge. What a lot of people forget, but waders know through experience, is that the tide comes in under the mud before it reaches it on the surface. So the mud near the edge is liquified and any worms grabbed can be extracted. (this is one reason why cars get stuck in the mud. They are driven around on the flat beaches, the mud supporting them easily. But as the tide starts to come in the mud can liquify below them, long before the tide reaches on the surface. Once the tide is above the mud, the weight of the water compacts it, and it becomes firm again. Too late for any vehicles unfortunately. they are now firmly stuck!)
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