CBM survey plots distribution per municipalities

With the approaching spring, the new common bird monitoring season starts. To improve the representativeness of the data, we had a look at the coverage of the survey plots per municipalities. We used data from all sites where birds are counted at least once in the period 2005-2014. The results are as follows: From a total of 263 municipalities in Bulgaria, 51% (134) have at least one survey plot. In the remaining 49% (129 municipalities) there is no survey plot This list of municipalities is crucial to improve the representativeness of the...