Daugleddau Estuary and Milford Haven Waterway annual surveillance of summer shelduck populations.
Pembrokeshire Coast National Park Authority,issuing body.
Milford Haven Waterway Environmental Surveillance Group,issuing body.
Description based on: 2013 issue; title from PDF cover (publisher's Web site, viewed July 9, 2020).
Latest issue consulted: 2019 (viewed July 9, 2020).
Shelduck
Environmental monitoring
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