a. The number of aborted foals are counted for mares grazing in fields with and without black cherry trees on Kentucky horse farms.
b. Scientists observed and recorded pecking patterns and underwing color markings of an unknown woodpecker to determine the species common pileated woodpecker or, rarest of rare, ivory-billed woodpecker.
c. Number and size of cubs born to polar bears in 1990 and 2000
b. Scientists observed and recorded pecking patterns and underwing color markings of an unknown woodpecker to determine the species common pileated woodpecker or, rarest of rare, ivory-billed woodpecker.
c. Number and size of cubs born to polar bears in 1990 and 2000