Forsøg stun Påhængsmotor red mason bee hæk tykkelse Bane
Urban Pollinators: The secret life of the Red mason bee (Osmia bicornis)
The Red Mason Bee Osmia Rufa ; All You Need to Know About Giving These Friendly, Safe Solitary Bees a Helping Hand . In Return They'll Improve Pol: O'Toole, Christopher: 9780953990689: Amazon.com:
Country diary: the mason bee builds individual rooms for her eggs | Bees | The Guardian
Red Mason Bee by Natural History Museum, London
Solitary Bees, Mason Bees & Leafcutter Bees UK: A Guide - Ark Wildlife UK
Red mason bee | Stack of 8 | joris vegter | Flickr
File:Female red mason bee (Osmia bicornis) on a buttercup and with lots of pollen stored underneath its abdomen, Sandy, Bedfordshire (9052938478).jpg - Wikimedia Commons