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Coal tit being ringed, Hogganfield Loch
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Glasgow - Hogganfield Loch
Coal tit (Periparus ater) in the process of being ringed during the BTO (British Trust for Ornithology) and Friends of Glasgow's Local Nature Reserves ringing event at Hogganfield Loch. The ringing pliers and rings are of different sizes for the different leg diameters of birds.
