This question is asked every year, when the gulls hang around in large numbers on rooftops in Slave Lake. Mostly they are the Franklin’s gull and it just happens that their habit during moulting is to congregate in places where they feel safe. The matter was dealt with last year in one of her weekly bird columns by bird bander Nicole Krikun of the Lesser Slave Lake Bird Observatory. The Franklin’s and the ring-billed gull like open, flat surfaces to gather during the moulting period, she explained. We keep building more of these, and the birds keep using them. It’s for a brief period every year, but it is getting on the nerves of the owners of those buildings and there have been noted efforts this year to scare them off with loud noises. By now the crisis has probably passed.