The processing is dirty and totally deficient of solid craftsmanship can be no question here. Where the boards abut a gaping gap, water will penetrate through every time it rains. When suspension is a simple hole in the rear wall, at such a price that's downright amateurish, which also applies to the unloving angetackerten chicken wire. The tray containing the pine cones is probably put a few insects in ecstasy, any reasonably diverse structured garden provides meaningful natural hiding places. The same goes for the wood chips in the upper compartment.
The holes in the logs carried out in parallel to the grain, so the end grain, one of the classic mistakes when Nisthilfenbau. Thus, the wood attracts moisture permanently, which results in a distinct cracking. Forked transitions of solitary Hymenoptera colonized but almost never, here there is an increased risk of penetration of Parastioiden. Drilling is expected to actually imitate abandoned beetle feeding tunnels in dead wood, which are like colonized by wild bees and wasps. These run only across the grain, never along. The holes themselves are executed completely messy, so many wood fibers protrude into the drilling run. Such transitions are shunned by the insects, since a high risk of the delicate wings hurt. Holes must be smooth and clean, it is best to grind after drilling a precaution after with sandpaper.
The myelinated stalks there are virtually no single clean central cavity to colonize the insect. While there are wild bees that eat away even their breeding programs to the plant pith, yet it is always to upright plant stems (eg, mullein, Blackberry etc.), which is composed by a fracture surface access to Mark. Transverse myelinated stalks are therefore inhabited only in exceptional cases.
Conclusion: Whoever designed this nesting aid, has not wasted a single second time trying to deal with the lifestyle and the needs of potential residents but merely wanted to ride along on the current trend wave. With such a product under the flag of nature conservation has to sail almost cabaret trains. Anyone who wants to get an idea, should such solid technical quality and a reasonable interpretation of the theme look, may googling for wild bees carpenter.
This nesting aid is only one thing: a waste of money! The fact that even those nesting boxes are at least partially settled, does not speak for their quality but only for the high "home printing" of insects. Valuable tips for designing biologically meaningful nest boxes can be found for example in the book of the wild bee biologist Dr. Paul Rich West, wild bees - the other bees.
