Human: What is the difference between a sandpiper and a plover? Assistant: 
A sandpiper is a small shorebird that breeds in North America. It has a long, thin bill and a short, rounded tail. It is brown above and white below. A plover is also a small shorebird that breeds in North America. It has a shorter, stouter bill than a sandpiper and a longer, more pointed tail. It is brown above and white below.