Shetland Birding: Fine start then deeply dippy

On Sunday 28th September, after barely a couple of hours sleep we had breakfast on the ferry and we approached Lerwick harbour where the only bird seen ws a male Eider. Ravens and Hooded Crows were also seen and seen throughout the trip being reasonably common and seen several times daily. We then drove to Lock of Tingwall. Parking by the first part of the Loch, revealed little but as we stopped at various parking spaces, the penultimate (last but one space) just before the Golf course revealed the fine male Ring- necked Duck amongst all the Tufted Duck(around 80 birds), a female Goldeneye was also seen and Red Grouse heard calling in the moorland cliff expanse beyond. It started to rain heavily so we dived back into the car. We then drove just south of Lerwick and in a bay just south of Lerwick from a large layby we saw a our first Black Guillemot in winter plumage in the bay, an Otter was seen swimming our way in the bay too. Plus Cormorant and a Shag on a distant rock. Whilst a Fulmar and 10 Gannet flew right. Turnstone and a Curlew over were also seen. We then drove to the Loch of Spiggie, with all the cameras still packed in the boot, it was unfortunate we saw a group of 6 Twite on a fence wires really close and 1 Twite stayed and would have posed nicely for the camera. Earlier on we had seen a flock of 24 Twite fly over a left side field. There was a large hide on the left side of the road. We parked up and entered the hide. We failed to find the Blue- winged teal, but we did see a female Scaup, a male Pochard, there were groups of 5 Whoopers and 3 Whoopers, there were 6 Mute Swans, a Heron, 2+ Snipe by the Loch edge, there was also Teal, Wigeon, Goldeneye, Mallard and Tufted Duck. Reports of a Little Bunting at Quendale Farm had us driving to the spot and our first encounted with Hugh H, who informed us we needed to park at Quendale Mill. We drove down to the Mill buildings and walked back to the Farm, no sign of the Little Bunting, but we walked right a little and other a field with vegetation a fine Wryneck flew and perched on the stone wall. We then walked back to the Quendale Farm near the Mill and a small group was gathered by a wall looking over a weedy area where a fine Willow Warbler was feeding. In the little tree copse surrounded by a stone wall, a Pied Flycatcher was feeding and perched up a few times. 2 Redwing were also seen and House Sparrows seen too. At Maywick Farm area, I spotted a fine Pied Flycatcher perched on a stonewall very briefly before flying into a copse. 8 Twite were seen in the wires and Starlings seen too, however there was no sign of Rustic Bunting. We should have stayed here longer. But instead we went onto another site down the road but there was no sign of the Dusky Warbler or YBW, just 2 Goldcrest seen here too and again no sign of Rustic Bunting. Again with hindsight we shoulf have stayed longer at this site. Back at Lerwick we saw around 15 Oystercatchers. In the evening in the back garden bushes, a male Blackcap was seen in bushes plus our first Shetland Wren of the trip, darker backed and larger, settled and posed briefly on the wall. Whilst down in the bay, c25 Golden Plover seen, a fine mother and calf Bottle- nosed Dolphins seen swimming and occasionally scything through the Loch showing a dorsal fin and their backs. The mother would surface and then the calf would surface.