Please see #1 for the main description of the walk.
The Orange-tip is a true sign of spring, being one of the first species to emerge that has not overwintered as an adult. Males are more-often noticed than females, largely due to the highly-visible orange splashes seen as the male butterfly flits along. It is believed that the orange tips of the male are an example of warning colouration, indicating that the butterfly is not particularly palatable to predators - a result of mustard oils that have accumulated in the body from the larval foodplant.
You are looking for a small container in a black pouch.
Congratulations FTF Daddyk-13