All About Hedgehogs - Local life & Little Histories
Hedgehogs After Dark: Courting and mating - Hedgehog Street
Hedgehog Mating Rituals | Life of Mammals | BBC Earth - YouTube
How to Breed Hedgehogs: 15 Steps (with Pictures) - wikiHow Pet
Reproduction – Pro Igel | Verein für integrierten Naturschutz Deutschland e. V.
Crowded house: nest sharing among solitary European hedgehogs in New Zealand - Recio - 2016 - Frontiers in Ecology and the Environment - Wiley Online Library