Little Owl Box No. 20B with protection against Martens and forced ventilation

Little Owl Box No. 20B

Fig. 1: Protection against Martens

Fig. 2: Forced ventilation

Fig. 3: Cleaning and inspection


The Little Owl, just 22 cm in length, is in acute danger of extinction. Its main habitats are gardens, small orchards or meadows containing white willows. Depending on the season, it lives mainly on Insects such as Crickets, as well as Woodlice and Mice. It frequently fails to colonise an area because of the lack of suitable nesting sites. Help is now at hand with the SCHWEGLER Little Owl Boxes of which there are four different types. Ornithologists recommend always hanging a minimum of three boxes immediately adjacent to one another since the Birds will use one or more to store food and young Birds will use them as shelter. Such measures will considerably improve the survival prospects for this species.

Bedding: Coarse sawdust or wood shavings and a mixture of sand and sawdust are ideal as bedding. Each of the four Little Owl Boxes is supplied with detailed description and maintenance instructions, and the Aluminium Nails needed to attach it to a branch.
Material: All the boxes have an aperture for inspection and cleaning purposes. They are made of a ring of wood or wood-concrete (depending on the model) surrounded by wooden battens and roofing felt.
Delivery: Together with flexible metal fixing strips and Aluminium Nails.
Assembly: The boxes should be placed on a horizontal branch of a fruit tree or in white willows, with the entrance hole facing the trunk. This discourages interference by passers-by and also makes it easier for the Birds to fly in and out.



Little Owl Box No. 20B

with protection against Martens and forced ventilation


This innovative nesting box has been developed on the basis of our other Little Owl Boxes which have been very successfully used for many decades. Also, this designed is very popular with Little Owls as well as human users due to large, removable entrance section (good access e.g. during inspection, ringing, etc.). Supplied with clamping band and Aluminium Nails for fixing onto horizontal branches.



  1. Protection against Martens: Martens are prevented from entering this box by the two offset entrance holes.
  2. Forced ventilation: The unique, forced ventilation system which is built into the end of the box enables stale air to be replaced without causing a draught (Fig. 2). This system also ensures that no light can enter the box. The amount of droppings and the resulting moisture, which can otherwise adversely affect the successful survival of the brood, is substantially reduced.
  3. Cleaning and inspection: The entrance section can be ­completely removed, making it easier to clean and inspect the box from the front.

External shape:
Length: 83 cm.
Interior of brood chamber: ∅ 18 cm.
Width of entrance hole: ∅ 65 mm.
Weight: approx. 8 kg.


Bestellnummer: 00 247/1
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