CityDad remarked about it in the original post (relative to the 80s). I accepted the number without challenging it. To be sure, I don't often see Monarchs nowadays in the big city. Its always a treat when we do.
Rod, if your observations reflect a pathogen that the population had not been exposed in the past, it wouldn't be first time this has happened. Other examples that resulting in great losses are the American elm and the American chestnut.
Last edited by jpsdad; 01/22/21 01:40 PM.
