"In natural science the principles of truth ought to be confirmed by observations." (Linnaeus). "Though, preferably backed up by a series of high quality digital photos and video." (KerryBirding).
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Wednesday 17 January 2018
Another Glaucous Gull, Black Rock
Adult Glaucous Gull, Black Rock, 17th January 2018 (David O'Connor).
Two more 'northern gulls' were also present at Black Rock, two first-winter Iceland Gulls.
