More than ruffled feathers: Mockingbirds show heightened aggression after lead exposure

Source: Science Daily

Mockingbirds exposed to sub-lethal levels of lead in urban areas display significantly heightened aggression, according to researchers. Their findings highlight the possibility that sub-lethal lead exposure may be common among other wildlife living in urban areas and more work is needed to better understand its full effects.

https://www.sciencedaily.com/releases/2019/01/190123124725.htm