Table 1.

Spearman rank correlations of measures of count effort with year (trend over time) in core Regal range.

	1977–2014			2001–2014
	N counts	R	P	N counts	R	P
Number of observers per count	1509	+0.1589	<0.001	910	+0.0966	<0.01
Party-hours per count	1507∗	+0.1627	<0.001	910	+0.1077	<0.01
Party-hours per count in circles ever reporting a Regal	718	+0.113	<0.01	414	+0.0522	>0.10

^∗2 counts were missing party-hours in the reports.