On the topic of montane species nesting in lowland areas: a pair of Gray-headed Juncos apparently nested in the middle of Boulder this spring, on the creek behind the Basemar shopping center (same spot where the Varied Thrush and Black-throated Blue Warbler were hanging out last fall). I saw an adult singing persistently there on 5/10 and 5/30, and found the adult tending a brown streaky juvenile on 6/15.
Looks like Andy Belt reported a Gray-headed Junco at Rocky Mountain Arsenal on 6/19, too. Nathan Pieplow Boulder On Wed, Jun 27, 2018 at 8:52 AM Charles Hundertmark <[email protected]> wrote: > This morning from my bedroom window I heard a Cordilleran Flycatcher > singing in the wooded stretch along an irrigation ditch. I first heard a > Cordilleran singing in the neighborhood on June 11. I was out of town from > June 12-20. Since returning, I’ve been hearing the Cordilleran calling on > multiple days in the same vicinity. > > On June 12, Richard Pautsch reported a persistently singing Cordilleran in > Denver. > > Are Cordilleran Flycatchers joining the growing list of montane species > moving into lowland habitats? In Lynn Wickersham’s account for this species > in *The Second Colorado Breeding Bird Atlas*, she notes that the species’ > population has been increasing and suggests that “…increasing availability > of manmade nest substrates…” may be contributing to the increase. Are > suburban homes providing a nest substrate the way cabins have in the > mountains? Do riparian strips along streams and irrigation ditches provide > corridors for movement? > > Will Cordilleran join Bushtits and Red-breasted Nuthatches in the list of > montane species moving into lowland areas? > > "What does not change / is the will to change” The Kingfishers, Charles > Olson > > Chuck Hundertmark > Lafayette, 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/D8689BD3-C266-4809-A388-3632463F4D62%40gmail.com > <https://groups.google.com/d/msgid/cobirds/D8689BD3-C266-4809-A388-3632463F4D62%40gmail.com?utm_medium=email&utm_source=footer> > . > 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/CAFhaDV%2BxUzXNUUi%3DYR6XTvqtQhcXFapBwhRtT3%2BBrmMKo1LDxA%40mail.gmail.com. For more options, visit https://groups.google.com/d/optout.
