4 The Birds Bird Repellent Gel

4 The Birds Gel Repellent is a transparent sticky gel used to deter pigeons and starlings from landing on surfaces. This polybutene gel is EPA registered for use as a repellent for pigeons and starlings. 4 The Birds is applied on bird resting places, such as window sills, roof ridges, gutters, parapets and ledges. It can deter birds for up to a year depending on the environment.