A park sign warning about the dangers of feeding bread to ducks and geese went viral on Wednesday, prompting tens of thousands of panicked reactions to the discovery.
In short, bread for birds is a serious no-no.
Bread has little nutritional value for ducks and can be a contributing factor in "angel wing", a condition that results in a bird's wings pointing out to the side rather than resting against its body.
The original tweet of the sign has over 30,000 retweets and has really shaken up people who are only now realising how damaging bread can be to ducks.
If you DO want to feed the ducks, stick to things like bird seed, cut lettuce, seedless grapes that have been cut in half and cooked rice.