Cassiobury Park + Croxley Moor - 21.4.11

A Willow Warbler singing by the council yard was probably new in and a Siskin flew over the tennis courts.

A late evening visit to Croxley Moor produced the goods with an almost instant Grasshopper Warbler reeling away roughly 100yds left of the Olds Approach entrance and showing well for a few minutes at 7.50pm. Another year tick was 1+ Cuckoo that flew over and was calling.