Google Pigeon
Google Pigeon is the code name given to one of Google's local search algorithm updates. This update was released on July 24, 2014. The update is aimed to increase the ranking of local listing in a search.
The changes will also affect the search results shown in Google Maps along with the regular Google search results. As of now its release in US English results and will shortly be released in other languages and locations too. This update provides the results based on the user location and the listing available in the local directory.