It seems harmless enough , feed breadstuff to the ducks in your local park ; we enjoy it , the duck get some food , and everyone ’s happy . In fact , in England and Wales alone , we feedsix million loavesof gelt to duck every year – but this is definitelydoing them more harm than good . Most bread is essentially detritus solid food to them , although white-hot is the worst , and can induce a cooking stove of problems , including a debilitating disease called “ holy person extension . ”

clean bread has essentially no nutritional value – it ’s mob full of calories and has lilliputian else to offer . Continuously feeding it to bird make them to bank on us for a intellectual nourishment source rather than their natural dieting . It ’s the equivalent of only feast your children insalubrious solid food ; they ’ll eventually get addicted to it , and will find it very hard feeding , or wanting to eat , anything else . So , at the very least , fertilize ducks bread is giving them a readily - approachable insalubrious diet , allow them at last malnourished .

At the far end of the spectrum , there ’s “ angel wing . ”   This is a disturbing stipulation that stimulate the bird ’s wings to head out laterally , rather than resting against the body , show them in many cases ineffectual to fly . It ’s an incurable condition bring about as a result of a high - calorie dieting , one extremely high in protein and carbohydrates , and miserable in vitamin D , einsteinium and manganese – the accurate diet a bird would get if they primarily deplete white wampum . Without being able-bodied to fly , these razzing soon exit .

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ikon quotation : The angel extension condition seen on a Muscovy duck . Cengland0 / Wikimedia Commons;CC BY 3.0

The upshot of lob bread into the channel and pool across the land go far beyond the prejudicial effect on the wellness of water bird : It pollutes waterways , causing poisonousalgal blooms , promoting the growth ofsuffocating cast , and attract infection - riddled varmint to the area .

“ Of of course , bread ’s not the only affair that causes the problem , ” says Richard Bennett , an environmental manager at theCanal and River Trust , as reported by theGuardian . “ It would n’t matter if you feed ducks in a clear , nutritive - complimentary environment like an highland stream , but hoi polloi are more likely to do it in towns and cities . ”

Remember : Just because something ’s been done for a long time , it does n’t make it good . That includes feeding simoleons to duck , giving milk to hedgehogs , or doing theBull Run in Pamplona .