Booming of male bitterns reveals presence of at least 164 of the heron-like waders living in British wetlands, says charityPopulations of the bittern, a wetland bird that was facing extinction in the UK in the late 1990s, are at a record high, conservationists report.Resident numbers of "Britain's loudest bird" increased in 2017, and experts - using the foghorn-like booming call of the males to survey the species - have counted at least 164 birds at 71 sites. Continue reading...
Bittern numbers in UK at record high, says RSPB
9. listopadu 2017 0:47
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Celý článek: https://www.theguardian.com/environment/2017/nov/09/bittern-numbers-in-uk-at-record-high-says-rspb
Zdroj: The Guardian