What is Google Hummingbird?

Hummingbird is the codename given to a significant algorithm change in Google Search in 2013. Its name was derived from the speed and accuracy of the hummingbird. The change was announced on September 26, 2013, having already been in use for a month

It was the first major algorithm update to Google since a fall of 2013 it is being upgraded, more focused on websites speed and accuracy to work on billions of Google query towards to give filtered results for the users.

Humingbird id the google core update release in 2013. its all about speed and accuracy according to humingbird. This algorithm is completely different than past versions of the Google algorithm is that it currently focuses a lot on informal search.