Birds on Skomer Island N.N.R
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BIRDS ON SKOMER ISLAND N.N.R. 2008 The island was inhabited between 28th February and 20th November. A total of 145 species was recorded (146 in 2007). Eider was recorded for the 8th time, Little Egret for the 8th and 9th time, Red Kite for the 3rd - 5th time, Black-throated Diver for the 4th time, Leach’s Petrel for the 2nd time, Grey Phalarope for the 5th-7th times, Dotterel for 6th time, Greater-spotted Woodpecker for the 10th time, Bluethroat for the 5th time and Sub-alpine Warbler for the 10th time. Also notable were White-fronted Goose, Balearic Shearwater, Mediterranean Gulls, Corncrake, Wood Sandpiper, Great Skua, Long-eared Owl, a record number of Long-tailed Tits, Golden Oriole, Grey Shrike sp, Melodious Warbler, four Yellow-browed Warblers, ten Firecrests, Tree Sparrow, four Lapland Buntings, Snow Bunting and Yellowhammer. Another poor year for waders, particularly in the spring. Of the breeding seabirds Kittiwake numbers and productivity improved on last year, Fulmar and Guillemot showed the 2nd lowest breeding success on record, Razorbills and Lesser Black-backed Gulls showed the lowest breeding success on record Systematic List WHITE-FRONTED GOOSE One seen flying over on November 1st. CANADA GOOSE Up to nine pairs nested and twenty three young fledged. SNOW GOOSE (domesticated) One seen on August 1st, 2nd and 3rd. SHELDUCK Pairs present from March 20th. One nest with eggs found in Shearing Hays on the 30th April. Seven young on North Pond on May 14th but all had disappeared by the end of the month. Last record a single adult on June 15th. EURASIAN WIGEON A pair present on North Pond from 19th March to 10th April. Three seen flying west on May 3rd and a single present on May 8th. Recorded on six dates in September with a high of seventeen on the 7th, two present on October 1st and a male present on November 1st. EURASIAN TEAL Monthly maxima: Mar Apr May June July Aug Sept Oct Nov 8 4 1 0 0 56 11 36 44 MALLARD At least six pairs attempted to breed and raised four young successfully. The first chicks were seen on the 17th May. Monthly maxima (excluding chicks): Mar Apr May June July Aug Sept Oct Nov 6 12 9 6 0 3 17 54 18 NORTHERN SHOVELER About three pairs attempted to breed but no young were raised to fledging. Three chicks were seen on May 8th but not seen again. Monthly maxima: Mar Apr May June July Aug Sept Oct Nov 14 14 5 0 0 0 4 12 9 TUFTED DUCK One pair was present and bred, six chicks were seen on North pond on June 11th and 12th but were not seen after that. Adult last seen on June 26th and a single on October 8th. EIDER Four seen off Skomer head on May 19th, making the eighth record for the island. COMMON SCOTER Six on July 10th, twenty two on July 23rd, seven on August 28th, twelve on August 29th, twenty five on August 31st, five on September 3rd, two on September 12th, 18th and 27th and a single on October 1st. PHEASANT Present throughout, with more recorded in October and November. RED-THROATED DIVER One seen flying north on September 4th. BLACK-THROATED DIVER One seen flying north on October 19th. GREAT NORTHERN DIVER One seen flying over on October 15th and 27th LITTLE GREBE One present on North Pond on September 19th and October 13th and 25th. NORTHERN FULMAR 565 AOS’s (apparently Occupied Sites) recorded, a 2.7% decline on last year. A mean breeding success of 0.26 is also a decrease on last year and the second lowest on record. First egg was recorded on May 23rd and chicks on July 14th. The last few Fulmar were still on the cliffs on September 7th and one seen close in to the island on September 19th. First returnee seen in North Haven on November 7th. Occupying cliffs from November 8th. MANX SHEARWATER First individual heard on the night of March 10th. By March 24th several dozen were heard around North Haven. The first egg was recorded on May 11th and chick on June 21st. First young ready to fledge on August 21st. Numbers declined by 9th September, young still being seen regularly at night around October 19th. Last one heard on the night of the November 1st. Study plot population 908. Breeding success 0.68. Adult survival rate (2006) 87.99%. BALEARIC SHEARWATER One on September 11th. EUROPEAN STORM PETREL First recorded on May 17th. Fifteen new nest boxes installed at Toms House. None of the ten existing boxes at Mew Stone showed signs of occupation. Whole island survey work carried out by Cardiff university found a population estimate of approx. 160 AOS’s. Some mist netting carried out at Toms House, Mew Stone and North Haven. LEACH’S STORM-PETREL One seen at North Haven on October 3rd early morning. GANNET Daily until November, recorded sporadically in first week of November. GREAT CORMORANT Eleven nests on the Mew Stone, four of which were on the south side and not visible from the island. Eleven chicks fledged from the seven nests that were visible giving a productivity rate of 1.57 young per nest. The first young were noted on April 17th. Spring movements consisted of 45 north March 20th, 10 north April 4th, 17 north April 5th, 9 north April 6th, 7 north April 7th, 9 north April 8th, 10 north April 14th. Autumn movements consisted of 16 south on September 22nd and 25 south on October 13th. Few were seen in November. EUROPEAN SHAG One pair nested around the corner of High Cliff (east of South Plateau) another pair probably nested on the north east coast. On Middleholm the Pembrokeshire Ringing Group recorded 58 nests, the highest ever total. There was a minimum breeding success of 2.2 chicks per successful nest. LITTLE EGRET One seen on Moorey Mere on April 27th was dead the next day. One on July 20th. GREY HERON Singles on June 7th, 11th, 16th and 23rd, July 12th and 20th, August 11th and 23rd and four on August 30th. Recorded on eleven dates in September and sixteen days in October. RED KITE Singles seen on September 14th, October 17th and November 1st were the islands 3rd, 4th and 5th records. HEN HARRIER One present on the island throughout most of March and April with two seen fighting on March 17th and two seen together on March 23rd and April 22nd. Not seen after April 23rd. MARSH HARRIER One juvenile on September 26th and 27th. EURASIAN SPARROWHAWK Bird days as follows: Mar Apr May June July Aug Sept Oct Nov 6 12 4 0 0 8 22 42 24 COMMON BUZZARD Six pairs nested and raised between two and four young. Nests at the Table and South Castle were known to fail. One nest on the north east coast was not visited so success unknown. Eggs were noted on May 20th and chicks June 4th and young fledged July 21st. High count in autumn of 16 on October 18th. KESTREL Bird days as follows: Mar Apr May June July Aug Sept Oct Nov 0 19 20 0 10 38 80 128 47 Maximum of six on one date in August, three dates in September and six dates in October. MERLIN Spring records consist of one present April 25th to 28th and May 2nd. Recorded regularly from October 4th onwards with up to two present through to the Wardens departure. PEREGRINE Four fledged from four territories WATER RAIL Singles on March 2nd and 8th, one on August 23rd four on September 5th and then recorded most days until Wardens departure. Highs of fourteen (estim) on September 28th, thirteen on October 12th, fourteen on November 4th and fifteen on November 6th. CORNCRAKE A single sighted in North Stream Valley briefly on September 29th. MOORHEN First chicks a brood on 25th May, a second on 30th May. Six juveniles seen on16th August. High of eleven on 25th August. COOT Several visits this year with a single on 1st April and two on April 12th, one on September 12th and three the next day, one on October 7th. OYSTERCATCHER 52 + pairs bred. Tall, thick vegetation meant productivity monitoring was abandoned as nests and chicks were impossible to locate. First chicks were not noted until 14th July. High of 120 on September 30th. RINGED PLOVER No spring records. Singles on September 11th, 23rd and 28th. DOTTEREL A single on September 16th is the first record since 2004 and only the 6th time it has been recorded on the island. GOLDEN PLOVER No spring records. One on August 31st, singles on September 7th, 20th, 27th and October 6th. LAPWING Singles on April 8th and June 10th. Two on October 17th, one on the 18th and seven on the 31st. Singles on November 3rd, 5th, 13th and 14th. PURPLE SANDPIPER Two on May 19th were the only spring records. Two on August 29th and one on November 3rd. DUNLIN Singles on two days in April, four in May, two in June, two in July, one in August, two in September and one in October. High of five on August 31st. SNIPE Seven bird days in March and April. Thirty four bird days from September 17th to November 6th with a high of six birds on October 31st. JACK SNIPE One seen near West pond on October 22nd. WOODCOCK Singles on October 26th and two on October 31st. Another single on November 6th, two on the 8th and a single on the 12th.