Bird poop helps keep coral reefs healthy, but rats are messing that up
Nitrogen from bird guano is linked to more productive reef ecosystems
![booby chick](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2018/07/071118_LR_seabird_feat.jpg?fit=860%2C460&ssl=1)
WILD WASTE Nitrogen from the guano of seabirds, such as this red-footed booby chick, leaches into coral ecosystems and helps them stay robust.
N. Graham