BTO Migblog – 24 Apr 2026 VIOLA.ROSS-SMITH Thu, 23/04/2026 - 16:22 Since the last migration blog two weeks ago, the spring migration has progressed significantly, with many of our summer migrants now widespread, later arriving species such as Swift starting to appear, and the earliest arriving species already starting to nest. In the last fortnight the reporting rate for Chiffchaff has actually dropped slightly, although this can probably be exp…
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