To publish and gather ornithological and mammalian sightings in the Tring Reservoirs area and environs
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Tuesday, 17 February 2009
4,200 BLACK-HEADED GULLS ROOSTED
At the Wilstone Reservoir gull roost with Dave Bilcock this evening, large numbers of Black-headed Gulls (c.4200), 150 Common Gulls and only 2 Lesser Black-backed Gulls. Also 58 Cormorants roosting (Steve Rodwell)
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