UPDATE 2014: Swifts nested in both the left and right boxes
UPDATE 2015: These 2 pairs returned and bred. 3 new boxes on another wall were not occupied
UPDATE 2016: All 3 original boxes occupied by Swifts, tweeter moved to 3 new single boxes.
Contributed by Dick
Some old friends asked me what to do about Swift boxes on their Cambridge house, which is located within a 100 metres of a substantial Swift colony in Chesterton Road.
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