Most of the native bees in North America have already been studied.
To make a burrow to keep themselves cool in the summer
To make a nest for their young
To hide from birds that would eat them
To find food underground
They hear them
They smell them
They dig at random until they find one
They memorized a map
In honeycombs
On flowers
In underground cells
In the bark of trees
4000
400
1000
10
All of the above
An egg
Nectar and pollen
A waxy coating along the inside
Be patient and observe them
Do not be afraid of them
Look for them places with many flowers
To find females to mate with
Even native bees that can sting rarely sting people unless you scare or hurt them.