We live in the foothills above FoCo @6,000ft. We have more Wrens (by sight or song) in our surrounding area than we have had in our 35+ years of living out here. (Purely anecdotal.) The competition must be fierce. Since the raid on the nest at our place, the house remains unoccupied. I hope we attract a new couple soon. Interesting COBird observations. Thank you all for sharing your expertise. The Lugers Across from Horsetooth Mtn. Pk.
> On Jul 15, 2015, at 10:48 AM, Janis Robinson <[email protected]> > wrote: > > I live in Coal Creek Canyon between Boulder and Golden at 8000 ft. We have a > LOT of wrens up here this spring and summer -- they were infrequent before. I > put up some nest boxes and had 2 successful batches of fledglings in one of > the boxes. > > Janis Robinson > Coal Creek Canyon > >> On Tuesday, July 14, 2015 at 4:42:08 PM UTC-6, Robert Righter wrote: >> Hi all >> >> The House Wren has always been an infrequent spring and fall migrant in our >> neighborhood in Denver. Last summer a few House Wrens were noted in our >> backyard. This summer the House Wren has blanketed not only our backyard but >> the whole neighborhood’s backyards, to where the wren the now is the most >> common breeding bird species. >> >> It is curious what environmental factors have triggered this increase. We >> rightfully take note of birds decreasing in populations but rarely take note >> of bird population increasing, except those that are considered pest species. >> >> Could there could be common environmental reasons for populations both >> increasing and decreasing? Perhaps knowing the reasons why some birds are >> increasing could help explain why some birds are decreasing? >> >> Bob Righter >> Denver CO > > -- > You received this message because you are subscribed to the Google Groups > "Colorado Birds" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To post to this group, send email to [email protected]. > To view this discussion on the web visit > https://groups.google.com/d/msgid/cobirds/1663b9bc-87a2-4f97-9670-0519b8cce9ee%40googlegroups.com. > For more options, visit https://groups.google.com/d/optout. -- You received this message because you are subscribed to the Google Groups "Colorado Birds" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/cobirds/719410BB-2D9D-4AE5-954B-009A10D89213%40comcast.net. For more options, visit https://groups.google.com/d/optout.
