There is a long tradition of feeding the ducks in New Zealand, but a UK survey has declared that the innocent habit is detrimental to both the birds' health as well as the waterways they inhabit.
Bryan Crump talks about the study with UK Canal & River Trust environment manager Richard Bennett.
Tips for healthy alternatives to feed to ducks
Related
Feeding the ducks in Queenstown Park 1937. 'Sir George Grey Special Collections, Auckland Libraries, AWNS-19370519-49-2'