Wildlife OF THE Waterways Waterbirds at risk

摘要

Anyone who ventures forth regularly on Britain's network of canals and rivers cannot fail to notice at least some of the commoner bank-side birds. Among the avian wonders on view are the ubiquitous, stork-like grey heron, the brightly-coloured, exotic-looking kingfisher, the tail-bobbing grey wagtail, the gleaming white mute swan and, in summer, the water-skimming swallow. Every year a small army of keen birdwatchers, working voluntarily under the auspices of The British Trust for Omithology (BTO), spends hours 'in the field' counting and monitoring both resident and migratory birds.