Monday, 9 September 2013

Vismig peaks yet to come

So we're in the thick of Grey Wag, Swallow and Osprey, with Sand Martins on the wane (on average). Can't believe I haven't put this up earlier. Siskins in the last couple of years have had a double peak with the major one up front precipitated by food conditions in the north. First ones through this morning, so let's see how it goes. Despite the graph, I have a feeling that Tree Pipits have peaked, and some of the dates are derived from UK averages where there's not enough data, making them later than in reality for southern Scotland.

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