Wednesday, 8 July 2015

It was another very changeable day weather-wise: the morning was dominated by a strong and chilly north-westerly wind, which was perpetuated by lashing rain for a time. In contrast, the wind completely died away in the afternoon, and gave away to warm and sunny conditions- ideal for encouraging the small day-flying insects to emerge.

Non-passerine migrants again highlighted arrivals, with one Ringed Plover, one Dunlin, one Whimbrel, 19 Curlews, one Redshank and three Common Sandpipers representing today's wader figures. A single Grey Heron lingered on around The Narrows, whilst there was a good count of 69 Puffins on the East Side. Three each of Chiffchaff and Sedge Warbler were noted inland, although these are the island's breeding birds- three Siskins in the Plantation were the only passerine migrants around.

It was a good day for insects and moths, with the highlight coming in the form of an male Azure Damselfly in the Plantation. Although this is one of the UK's commonest Zygoptera species, it could well be a new species for Bardsey. Blue-tailed Damselflies, however, are a very common species on the island, with over 20 noted today around Nant Pond. Day-flying moths of interest included Deplanqueia dilutella, Celypha cespitana, Lobesia littoralis, hundreds of Pyrausta despicata and Chryoteuchia culmella, and also Yellow Shell, Silver Y, and a Six-spot Burnet,

Blue-tailed Damselfly- female (top) and male (bottom)

Azure Damselfly 

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