| 摘要 |
<p>A bird deterrent device (10) is integrally moulded from plastics material and comprises a planar base strip (12) with two sets of prongs arranged along opposite lateral sides thereof. The prongs are joined to the base strip by root portions mounted on outward lateral projections (18) of said base strip, all of the prongs extending upwardly from the base strip and outwardly from a perpendicular plane passing through the principal axis of the base strip. Each set of prongs contains at least a first subset of upright prongs (14), extending at a small angle with respect to the perpendicular plane and a second subset of splayed prongs (16), extending at a greater angle with respect to the perpendicular plane.</p> |
