We're visiting Massachusetts for 2 weeks from mid August. This will be our first visit to the USA so we're keen to expand our list of American species while on a family holiday. After 3 nights in Boston we have 3 nights in Concord and will visit Great Meadows. We then have 1 week on Cape Ann based in Lanesville. Obviously we will include at least one visit to Plum Island plus Ipswich, Gloucester, etc. My question is how many species is realistic at this time of year and given that it is not only a birding trip. Does approx 100 species sound possible? Hope someone can give us some advice.