4 calls (20%) have no correlation assignment with either from another summer or one of the two winter calls analyses. 4 pairs have only correlations with other summer recordings but none with any of the winter. Hence, for 8 pairs (40%) I have found no correlation with any of the winter pairs.
4 pairs have been found in both winter and 3 summer recording analyses (5 matches), one other pair had 4 matches. 4 pairs have only summer correlations.
From the other viewpoint, ANWR, 11 of the 40 pairs we know from there have been found in the summer recordings, 2 of them may be dead or divorced. From 30 pairs in winter 2001, 10 (= 30%) have been correlated with summer pairs, from 28 pairs in winter 99/00, seven (= 25%) have been correlated with summer pairs.
December 27, 2002
Dr. Bernhard Wessling