Identify the Crystal

Because I rather like crystals and have been trying to study them, but couldn't find many quizzes.

Insect Identification Quiz (Novice)

Level 1 insect quiz. How much do you know?

Bird Identification Quiz (Very Difficult)

Level 5 bird identification quiz. Take this if you dare!

Bird Identification Quiz

First bird identification quiz. Currently set at level 1.

External Parasite Identification Quiz

This is not as bad as the internal parasite identification quiz, but it does contain bloodsuckers and other jerks. Take this at your own risk!