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Bird Notes for March by Jim Cassels
Spring is an exciting time of year, awaiting the arrival of our summer visitors and seeing the last of our winter visitors leaving.
The timing of the northerly spring migration is dependent on the weather, not just locally, but throughout the whole length of the migration route. On Arran, March was warmer and dryer than February. March mean temperature was two degrees higher and the rainfall in March was half that of February’s. Overall, this March was similar to last March with some settled spells.
It was during these more settled spells that a few pioneer summer migrants did arrive. On the 17th the first chiffchaff were reported singing, one in Auchenhew Bay and one on Holy Isle. By the end of the month chiffchaff were widespread.
Also, on 17th the first white wagtail was a pied wagtail on Silver Sands. The first wheatear report was two from Shannochie on 25th and on 31st 30 sand martin were reported from Catacol and three from Clauchlands. These were all the migrant species reported in March. April should see improving weather and the arrival of other migrants like willow warbler, sandwich tern, Manx shearwater, swallow, house martin, common sandpiper and cuckoo – all signs of the approaching summer. Please keep me posted.
In March, our winter visitors were still to the fore including: nine yellowhammer in Sliddery on 6th, 16 wigeon at Cosyden on 7th, a male goldeneye on Mossend Pond also on 7th, 100 pink-footed geese on Clachaig Farm on 18th, three rook at Sliddery also on 18th, 20 teal in South Carlo on 19th, 350 greylag geese in the Shiskine Valley on 19th, 17 fieldfare in Strathwillan on 22nd, 10 redwing in Sliddery also on 22nd, five white-fronted geese in Shiskine Valley on 24th and a female merlin in Cordon on 29th. Also, on 29th there was the first report this winter of an Arctic breeding white winged gull, when a first winter Iceland gull was photographed at the mouth of the Rosa Burn.
In March there were many signs of migration. Flocks of up to 100 whooper swan were reported flying north over the island on 21st and 22nd. Other signs included a flock of 600 starling at Sliddery on 6th, seven great northern diver off Pladda on 7th, nine black-throated diver in Whiting Bay on 8th, 20 turnstone in Lamlash Bay on 15th, 42 golden plover in Catacol Bay on 13th and a bar-tailed godwit in Auchenhew Bay on 21st.
Gannet sightings began to slowly increase during the month with six off Pirnmill on 28th, the largest group reported. In addition, there was an increase in numbers of goldfinch and siskin at garden feeders, from several areas as these species began to move north.
In a month when more than 100 species were reported, here is a small selection of other interesting March records: two goosander in Whiting Bay on 1st, four little grebe in Loch Ranza on 13th, a treecreeper on Holy Isle on 19th, two dipper in Strathwillan on 25th and six common crossbill in High Kildonan on 26th.
Throughout March, reports of the long-staying, colonising species little egret, nuthatch and white-tailed eagle continued. Little egret was first reported on 20 October 2020, the nuthatch was first reported on 1 October 2020 and the pair of white-tailed eagle was first reported on 22 November 2020.
In February reports of the little egret were mainly from Brodick Bay and Lamlash Bay, the nuthatch reports were all from Pirnmill and the pair of white-tailed eagles mainly from the west coast of the island.
Spring is a great time to be birding, as most birds are getting on with the business of breeding.
The business of breeding involves attracting a mate by song, courtship display and ritual, defining a territory, nest building, and generally establishing relationships.
In March the signs were there: a grey heron carrying nest material in Lagg on 1st, great spotted woodpecker drumming in Merkland Wood on 13th, 50 eider courting off Cosyden on 19th, eight black guillemot in breeding plumage on Pladda on 24th, blackbird carrying food in Kildonan on 29th and many species singing including a blackcap in Auchenhew Bay on 31st.
I am interested in all records of arriving summer migrants and any signs of breeding birds.
Enjoy your birding and keep safe.
Please send any bird notes with ‘what, when, where’ to me at Kilpatrick Kennels, Kilpatrick, Blackwaterfoot, KA27 8EY, or e mail me at firstname.lastname@example.org
I look forward to hearing from you. For more information on birding on Arran purchase the new Arran Bird Report 2020, which is just out, and the Arran Bird Report, the first 40 years. Plus visit the arranbirding website.