Banding birds

This task is about why and how scientists gather data.

Question 1Change answer

A bird's leg with a band on it.
 
 
 
Sometimes scientists catch wild birds they are studying. They put bands or tags on these birds and then release them back into the wild.  
 banded-bird-leg.png
 
a)  What are two pieces of information that scientists could get by tagging birds?
1.
 
2.