In 2011 we were engaged to make large pigeon traps on a commercial basis for one of the big national Pest Control firms. After a few trials we settled on a 4ft by 4ft design with 2 bobwire doors and 2 funnel doors. This dual approach gave the technicians the opportunity to chop and change according to what worked best at any given site.
Another innovation was the ‘lift up’ roof panel that made life a bit easier for the technician when inside the trap.