Why do NABA Butterfly Counts require a minimum of four observers and six party-hours?
Three of the main goals of NABA’s Butterfly Count Program are to (1) gather data that will monitor butterfly populations, (2) give butterfliers a chance to socialize and have fun, and (3) raise public awareness by hosting events that will increase general interest in butterflies. A minimum of four observers and six party-hours best meets these three goals. Because some long-running existing counts do not meet the new guidelines, the four observer/six party-hour requirement is strongly suggested (but not required) for all count circles that were established prior to 2009 and required for counts established in 2009 or later.
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