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Saturday, July 20, 2013

Biodiversity in Old Buildings

Broken upstairs windows.

Metal roofing blown off makes an airy entry.

Absence of siding over boarded sheathing on one end of the building.

Chimney Swift nest constructed mostly of small twigs and highly viscous 'swift spit.'  If you look carefully at the photo, you can see a halo of swift spit around the nest.  An adult was on the nest incubating hidden from view when this photo was taken.  Note the rough sawn boards that afford less 'spit slippage' and a better, more safe and secure bonding of the nest to the wall than would any of the new building code approved boards that are planned smooth.

Newly fledged barn swallows.

This barn provides airy entry to wildlife with an open window in the peak and a piece of metal roofing blown off that affords easy flight for nesting barn swallows (3 pr) and one pair of chimney swifts.  It is located within 10 ft. from a forested main road, with no agriculture being practiced for several kilometers surrounding.

Tree swallow nest box.

Newly fledged cliff swallow.

Despite our search, this building had no swallows or swifts we could find, but likely supported a  large number of summering bats before their population collapse from white-nose syndrome.

We use a battery operated 'deer jacker lamp' to illuminate the inside of dark abandoned barns and buildings.

Horse shoe hinge...


  1. Beautiful buildings. Nothing I like more than an old corrugated tin roof.

  2. You have a great job, Mark!
    The swallows in BC are becoming rarer according to my dad.
    Keep cool.