Patent ID: 7500451

Claim:
A bird deterrent apparatus comprising: a barrier line that in use is suspended above an object to be protected from perching birds and their associated debris, the barrier line serving to confuse, alarm and physically deter birds from perching; a barrier line retainer attached to one end of said barrier line for quick attachment and detachment of said barrier line; a line retractor having sides that enclose an internal line spool for storing and delivering said barrier line through a barrier line guide hole, the internal line spool having a spring and a brake for safely tensioning and retracting said barrier line, said spring and said brake operatively connected to said internal line spool; a c-shaped rail clamp attached to said line retractor for ease of mounting and demounting said line retractor on a structural element of the object to be protected; wherein said c-shaped rail clamp is further attached to said line retractor at a point that is below and perpendicular to said barrier line guide hole and an upper barrier line guide assembly for retaining and guiding said barrier line while said barrier line is in use, the upper barrier line guide assembly having an upper barrier line guide stanchion clamp containing an interior that is shaped to accommodate the vertical support structure and an upper barrier line guide containing an eyelet, wherein said barrier line is retained by the eyelet.