Correction: Focal Plant Observations as a Standardised Method for Pollinator Monitoring: Opportunities and Limitations for Mass Participation Citizen Science.

[This corrects the article DOI: 10.1371/journal.pone.0150794.].

There is an error in the Methodology/Principal Findings subsection of the Abstract. The number of schools is incorrect. The correct sentence should read: Timed counts of bumblebees (Bombus spp.; identified to six colour groups) visiting focal plants of lavender (Lavendula spp.) were carried out by about 13 000 primary school children (7–11 years old) from over 400 schools across the UK. 3948 reports were received totaling 26 868 bumblebees.