Choose Options Compare Quick view Bee Observer - Solitary Bee Observation Tray Crown Bees MSRP: Now: $19.95 Was: Add our Bee Observer nesting tray to your Chalet, Cabin, Townhouse, or Tower bee house and watch female bees build their nests. The clear window allows you watch mason bee larvae develop or leafcutter bees emerge and return to nest again. Lifestyle... MSRP: Now: $19.95 Was: Choose Options Compare Quick view Qty in Cart: 0 Price: MSRP: Now: $19.95 Was: Subtotal: Choose Options