BirdShield™在表面風乾後會殘留葡萄香味，此味道會刺激雀鳥三叉神經系統，令雀鳥產生輕微過敏反應，所以不會繼續逗留。
該配方由 Bird-X 與美國數間主要的大學共同研製，其主要成份是 MA（Methyl Anthranilate），此物質分別獲美國FDA給予安全（Generally Recognized As Safe-GRAS）等級，而且可以生物降解，對人類、動物均無害。
BirdShield™ will leave a residue with a grape-like odor after drying. It stimulates birds’ trigeminal system allergic reaction mildly, so that they will not stay in that particular area anymore.
The formula was developed by Bird-X and several universities in the US. Its active ingredient is Methyl Anthranilate (MA), a constituent of Concord grapes. MA has been used by the food and drug industry for over 40 years to flavor candy, sodas, gums, and drugs; it is listed by the US FDA as “Generally Recognized As Safe” (GRAS). It’s eco-friendly for the biodegradability, and harmless to both human and animals.
