Toronto-based consultants Earthfx Inc., writing a report on Source Water Protection, had some interesting ideas on how to estimate the number of livestock in the watershed of the Central Lake Ontario Conservation Authority, known as the CLOCA.
The consultants, according to a “tier one” draft report, dated January, tried to count the number of livestock in the area by “cross-checking” more than 300 known farm wells with high-resolution aerial photos.
“The scale and type of operation might also be estimated from the photos. Pigs versus cattle operations can be distinguished based on the characteristic “pink” color (sic) of the animals,” they say.