The single species in this genus has only recently been transfered to the Tit family. It was once considered to belong to the Corvidae but molecular and osteological testing has now indicated that it belongs to the Paridae.
... size is 2.59 and the average family size is 3.04.
In the town the population is spread out with 25.2% under the age of 18, 4.8% from 18 to 24, 27.3% from 25 to 44, 28.7% ...