Attract a wide range of species with the 1B. This box is available with different entrance hole sizes to prevent competition between birds. The 1B is available in four colours: brown, green, white and red.
 
Key Features:
Low maintenance - just fit and forget
Highest occupancy rates
Ideal for most small hole-nesting birds
The easy-open mechanism for inspection and cleaning
Easy to hang from wall or tree
 
Specifications:
Weight - 3.6kg
Height - 23.0cm
Round - 16.0cm
Material -  Woodcrete
 
Occupants: Blue, Marsh, Coal, and Crested Tits. All other species are prevented from using the nest box due to the smaller entrance hole.