Farmoor Reservoir 27/28th April

Common Swift 100+

Swallow 100+

Sand Martin 50+

House Martin 50+

These numbers may well be an underestimate if birds were just passing through and continuously being replaced by others. The Swifts had mostly gone by 1030 and the hirundines by 1300 when the rain ceased and the wind dropped

Yellow Wagtail 13+

Little Ringed Plover 1

Common Sandpiper 3

Dunlin 2

Common Tern 1