$10 · Wilson Shoo Bird Repellent Paste for Pigeons and Sparrows, ETC

A soft, sticky material to be applied to window sills, eaves, ledges and roofs, to prevent birds from roosting. It is slightly tacky to their feet which discourages their return. It will not flow in summer and remains tacky to -17C. Shoo is insoluble in water. For use with caulking gun. Made in Canada. Reported to be non-poisonous and non-harmful to birds by Canadian Pest Management Regulatory Agency. New, never opened.