Google introduced its “Hummingbird” algorithm update in 2013. Google announced the update on September 26, 2013, describing it as a major change to the way its search engine interpreted queries and matched them with results.
Hummingbird was designed to improve Google’s understanding of conversational and complex searches, especially queries containing several words or concepts. Instead of focusing mainly on individual keywords, it aimed to interpret the meaning of the entire phrase. This helped Google return more relevant results for natural-language questions.
The update was not the same as Panda or Penguin. Panda, launched in 2011, focused on low-quality and content-farm pages, while Penguin targeted manipulative link practices. Hummingbird was more fundamental: Google said it affected about 90% of searches, although many users noticed no dramatic change because it generally improved results behind the scenes.