A quiz from Idaho Fish & Game. https://idfg.idaho.gov/article/spotting-salmonids-put-your-fish-id-skills-test?fbclid=IwAR2KXx6VF4M3MogHHW-GxrTmZF2LW6AhwYpegoIaj7Q0-D5EL55ZcWsl-jc