Tuesday, August 6, 2013 at 8:38AM Muscicapa striata striata
Common but not numerous summer visitor, scarcer as a breeder on the west coast. On the islands a regular but not numerous passage migrant.
R.M.Lockley, G.C.S.Ingram, H.M.Salmon, 1949, The Birds of Pembrokeshire, The West Wales Field Society
Wednesday, July 4, 2012 at 12:27PM This is a species that has been declining in the UK since at least the 1960’s. The BBS calculated a decrease in excess of 50% by 2007. The Pembrokeshire survey of 1984-88 estimated a total of 900 pairs breeding in the county, based on an average of four pairs per occupied tetrad. The 2003-07 survey found there had only been a contraction of 7% in distribution. The Pembrokeshire BAP Breeding Bird Survey of 2003 found numbers were still high in old woodland, albeit the survey scope was small. It would seem that Spotted Flycatcher numbers in the county may have decreased to a lesser degree than the 37% calculated by the BBS for the UK as a whole between 1995 and 2006. Applying the BBS value to the 2003-07 distribution for Pembrokeshire suggests that about 500 pairs were breeding during the 2003-07 survey.
Graham Rees
Fieldwork 2003-07 (based on 490 tetrads)
Red = breeding confirmed = 66
Orange = breeding probable = 107
Yellow = breeding possible = 35
Total tetrads in which registered = 208 (42.5%)
Monday, December 26, 2011 at 10:26AM Breeding summer visitor and passage migrant. Not recorded from December to February
A common but not abundant summer visitor to Mathew (1894); Lockley et al. (1949) also noted it as a numerous passage migrant to the islands.
Today it is a widespread breeder in Pembrokeshire, principally found in wooded areas but also in orchards and gardens and on some islands (see map). At an estimated average density of four pairs per tetrad, a total county breeding population of about 900 pairs can be calculated.
The first Spotted Flycatchers usually arrive in Pembrokeshire during the last week of April or early May. Occasionally they are noted from 19 April onwards, and one was at Skomer from 26 to 30 March 1984. Passage continues through to early June, sometimes to the end of the month, with occasional falls such as the 150 birds seen at Ramsey on 13 May 1967.
They pass through again from about mid-July to early October, with stragglers sometimes recorded until 23 October, but up to three were noted at Skomer between the 1 and 14 November 1977. Falls also occur on autumn passage, such as the 40 birds seen at Skokholm on 14 August 1964.
Ringing recoveries have shown that Continental birds, from Germany, pass through in autumn and migrants of unknown origin ringed locally at that season have reached Nigeria by October.
Fieldwork 1984-88 (based on 478 tetrads)
Red = breeding confirmed = 87
Orange = breeding probable = 61
Yellow = breeding possible = 76
Total tetrads in which registered = 224 (46.9%)
Sunday, November 13, 2011 at 2:41PM 
Red = breeding confirmed
Orange = breeding probable
Yellow = breeding possible
Saturday, December 18, 2010 at 8:53AM Species account from M Mathew, 1894, "The Birds of Pembrokeshire and its islands"
