Mr Hobbs said: 'Most people hate to see fly-tipping as it is an ugly blight on the landscape, but incidents like these highlight that as well as the visual impact the rubbish can also endanger animals.
'The heifer was probably curious to see a new item dumped in the field and curiosity would have turned to panic once she got her head stuck in the drum and was unable to get it out.
'If people disposed of their rubbish properly many animals would be saved from injury and death.'
He added that a large proportion of the injuries the Society's inspectors, animal collection officers, vets and wildlife hospitals dealt with are usually caused by people who carelessly discarded rubbish.
According to Wikipedia, fly-tipping is "a British term for illegally dumping waste somewhere other than an authorised landfill." Link -via Unique Daily