According to a Moz.com post, written by David Mihm, called Hummingbird’s Unsung Impact on Local Search, David feels that due to a “purer” ranking algorithm in local packs, the overall quality in Google’s local results are a bit lower than before.
David will be working with Dr. Pete over the coming months to create more quantitative local components of Mozcast. But since the work is still just beginning, David has seen fit to describe what he sees right now with an analysis.
To read the analysis, you can check it out by following the link below:
http://moz.com/blog/local-hummingbird-results