Specifications include, but are not limited to: Contractor shall perform bird control services on a as needed basis with a non-lethal method shall be utilized to avoid unsetting reactions from the public. Services to help control the accumulation of their feces on walkways, stairways, handrails, signage and sitting areas. B. Bird Control shall include for Pigeons, Starlings, Crackles, Sparrows, Crows, Blackbirds, Woodpeckers and any other flocking birds deemed as undesirable by Authority and not protected by Federal Migratory Treaty Acts. Preferred and foremost methods allowed: taste, spiking and hot feet gel deterrents. Non-preferred methods, audio, visual, electrical, fatal poison and netting deterrents. Other methods may be used only with COR’s (Contracting Officer’s Representative) approval.