Field Notes from the 1987 DNR survey of the heron rookery. The effect of time on the island’s wildlife is interesting. It appears the herons have been moving steadily northeast over the last several decades. 

+ “Former heron rookery, now cormorants 1987”

+ “Many blown down GBH [Great Blue Heron] nests”

+ “1987 Approx bound. of Grt. Bl. Hrn colony, more nests toward the NE”