Tick anything you already have, in any order. Quests unlock once this is done.
Heathland, ponds and old walls, depending on the species. A local wildlife trust will tell you what is realistic to see and when they are active.
Find local reptile and amphibian records3 things left above. Quests are real things you go and do, so they only make sense once you have what you need.
First one waiting: Find and identify five species near you