Where the Hummingbird is the name of the Google search algorithm overhaul happened in 2013. The Hummingbird has helped to make search more about context and less about keywords and it helps Google better understand the intend of the keywords not just keywords. That is the better and improved interpretations of the intention is what special about the hummingbird.

The "Hummingbird" update was the first major update to Google's search algorithm since the 2010 "Caffeine" search architecture upgrade, but even that was limited primarily to improving the indexing of information rather than sorting through information.