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Natural cavity nest sites have declined dramatically so providing a nest box in your garden or woodland can provide much-needed breeding and roosting space for cavity-nesting species. The 1B is the bestselling nest box for garden birds and one of the official nest boxes of BTO's National Nest Box Week. The 1B nest box will attract a wide range of species and is available with different entrance hole sizes to prevent birds from competing with each other for the boxes. The 1B is available in four colours: brown, green, white and red. The nest box can be attached to the tree or wall using an aluminium nail or by hanging over a branch and is made from Woodcrete to ensure that it lasts for decades. The front panel is removable for inspection and cleaning.
Entrance hole sizes:
* 32mm entrance hole will attract Great, Blue, Marsh, Coal and Crested Tit, Redstart, Nuthatch, Collared and Pied Flycatcher, Wryneck, Tree and House Sparrow and bats.
* 26mm entrance hole suits Blue, Marsh, Coal and Crested Tit and possibly Wren. All other species are prevented from using the nest box due to the smaller entrance hole.
* Oval entrance hole (29 x 55mm) suits Redstarts because more light enters the brood chamber. It is also suitable for all other species which nest in the 32mm boxes.
These Woodcrete nest boxes are famous for their durability - lasting for at least 20-25 years. Woodcrete is a breathable blend of wood, concrete and clay which will not rot, leak, crack or warp, whilst preventing condensation and maintaining more constant temperatures inside than wooden boxes. Schwegler bird boxes are backed by conservation organisations, government agencies and forestry experts and experiments have shown that the highest density if bird populations (i.e. breeding pairs per hectare) is achieved with Schwegler nest boxes. They are carefully designed to provide a stable environment and to mimic natural nest and roost sites with internal brood chamber dimensions that are similar to natural woodpecker cavities. Schwegler have a patented method of installation on trees that prevents the tree trunk from growing over the hanger from which the box is suspended. A separate replacement front panel is also available.
23cm high x 16cm diameter. Aluminium tree-friendly nail and hanger included.
For top tips on making your nest box a success, see our blog on Five FAQs About Attracting Birds to Your Nest Box. To attract most Tit species the nest box should be hung at a height of 1.5 metres or higher although Coal and Marsh Tits prefer much lower nest sites. Nest boxes should be angled so that they face away from the prevailing wind (usually south-westerly in the UK). The chances of occupation are higher if there is good tree (particularly oak) or hedge cover nearby as these will provide a good source of insect food for the nestlings when they hatch.
For enhanced predator-protection, the Schwegler Predator-Proof Front Panel is also available.
Dimensions: height: 23cm, diameter: 16cm
Material: Schwegler Woodcrete
Available colours: brown, green, white, red, all with grey front panel
Supplied with: galvanised steel hanger and aluminium nail
Entrance hole sizes: 26mm, 32mm or Oval (29 x 55mm)