The Birds is a movie that's become one of Alfred Hitchcock's most influential features, which is truly saying something considering the dudes IMDB filmography is stacked with motion pictures whose impact spreads far and wide across the globe. Some of that I would say is due to it being one of the few horror films to revolve around threatening avian creatures (the only other noteworthy movies are B-grade schlock like
Beaks: The Movie or
Birdemic: Shock And Terror), giving it a sort of unique nature that makes it stands out in people's minds, there's no way you'll confuse
The Birds with many other movies.
