On Monday at the mouth of Przekop Wisly (a canal built by the Germans a hundred years ago or so to provide a new, easier to handle river-bed for the biggest polish river at its mouth) I struggled with the waders; despite my great efforts I didn't ID all of them, but the ones I did ID were, from my viewpoint, rewarding.
There was at least one Broad-billed Sandpiper (distinctive zebra-like pattern on the head, especially when seen from the front) at the bank of the canal, along with one Ruff , one Spotted Redshank , some Dunlins and Common Sandpipers , and possible Greenshank and Curlew Sandpipers.
On arriving at the sea shore I saw one Knot , a few Temminck's / Little Stints (couldn't determine), and Dunlins again. Terns were Black, Sandwich and Little . Ringed Plovers turned up after a short while. Having walked along the beach for some distance, I finally spotted six Red-necked Phalaropes out on the sea.
The most impressive sighting of the day were Littlt Gulls though, huge flocks of them constantly present, definitely more than a thousand individuals.
Mammals seen include one Marten foreaging for the fruits of some thorny bush. Given the predatory nature of this animal - quite an interesting thing to see. Pity I didn't determine whether it was Stone or Pine Marten despite the favourable circumstances - full daylight (6.15 a.m.)