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<br />_i <br />::rs. Allc~ra Collister, of,Lonomont, has reported to us o~serva- <br />t;~i:s of a nu;.iber of regionally unusual species of birds which she has <br />o~s~rvcd in the general area including the Hennigh and Ziegle properties, <br />a-.or.~ them the Calliope Hummingbird, Scissor-tailed Flycatcher, <br />C:.rolina F.rer., and Painted Redstart. She considers the site to be <br />wit:~in an important north-south flyway for migrants, bordering as it <br />does, the plains and the foothills. <br />The St. Vrain River, in its course past the properties, affords an <br />unusually good habitat for dippers in winter. <br />The cell established riparian community of the study area affords <br />a very pleasing variety of birds in winter. In any one day, Gr.at <br />:'orncd Ocals, Belted Kingfishers, Townsend's Solitaires, and Ki1.Ldeers <br />are liable to be seen, along with a dozen or so more dependable and <br />aides?read species. <br />This study area appears to be located within an important c•~inter <br />ha~itat for Canada Geese. Although its precise role has not been <br />evaluated, it does not appear to be critical, as there is relatively <br />r..ore goose activity on other nearby properties. <br />Certain processes are already in progress which can be expected <br />to ir.i].uence both the variety of birds to be seen, and the average <br />nu:.:bers of most birds seen, on the Ilennigh and Ziegle properties. <br />Among these processes are: <br />(1) gross modification of habitats associated with limeston•a <br />quarrying to the west; <br />(2) c.idcning of State Ili~inaay u5 to the north, and on-going <br />channclization of the St, Vrain River to the north; <br />