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Morning Birding Species List | September 10, 2013

Throughout the summer months ACES offers weekly Morning Birding classes at their Hallam Lake site in Aspen and Rock Bottom Ranch site in Basalt. Class outings venture to local birding hotspots and the birds never fail to impress. Take a look at the below species list and notes from one of the recent classes in Aspen and register today for upcoming birding classes, which run through September!

Tuesday, September 10, 2013, 7 AM - 10 AM


Roaring Fork Valley Phenology | September 2, 2013

On my way back from Crested Butte this past weekend my gatherer's eyes found a lot of berries to munch on and mushrooms to bring home. I also spotted a few Mormon crickets, Anabrus simplex, which are not high on my gathering list as of yet, though were a valuable food source for many native American people.  


ACES Welcomes New Education Director

Posted in Bulletin Board

Arin Trook joins full-time staff to direct regional education program.


Morning Birding Species List | August 27, 2013

Great Blue Heron

Throughout the summer months ACES offers weekly Morning Birding classes at their Hallam Lake site in Aspen and Rock Bottom Ranch site in Basalt. Class outings venture to local birding hotspots and the birds never fail to impress. Take a look at the below species list and notes from one of the recent classes in Aspen and register today for upcoming birding classes, which run through September!

Tuesday, August 27, 2013, 7 AM - 10 AM


Roaring Fork Valley Phenology | August 26, 2013

What are you seeing out there as we enter September?

Hummingbird moths, aka White-lined sphinx moths Hyles lineata, have been spotted gathering nectar recently around dusk.  This photo was taken recently in Aspen’s West End. These moths, along with hummingbirds, some bats, and hoverflies (which look a lot like bees), developed hovering skills through convergent evolution. 


Morning Birding Species List | August 22, 2013

Throughout the summer months ACES offers weekly Morning Birding classes at their Hallam Lake site in Aspen and Rock Bottom Ranch site in Basalt. Class outings venture to local birding hotspots and the birds never fail to impress. Take a look at the below species list and notes from one of the recent classes in Basalt and register today for upcoming birding classes, which run through September!


Evening Birding Species List | August 21, 2013

Throughout the summer months ACES offers Evening Birding classes at Hallam Lake, open to birders of all ages. Class outings venture to local birding hotspots and the birds never fail to impress. Take a look at the below species list and notes from one of the recent classes in Aspen and register today for upcoming birding Morning Birding classes, which run through September!


ACES Expands Full-Time In-School Environmental Science Program at Crystal River Elementary School

Posted in Bulletin Board

Press Release: Aspen, Colorado, August 22, 2013 — Aspen Center for Environmental Studies (ACES) and Crystal River Elementary School (CRES) have partnered to bring full-time, in-school environmental science education programming to all CRES students, kindergarten through fourth grade, when classes resume on August 26.


Roaring Fork Valley Phenology | August 19, 2013

Gaze up Smuggler Mountain toward Hunter Creek near the end of August and you may be surprised to see a patch of aspen trees beginning to turn color. This early turn happens every year, typically about a month ahead of most other aspens in the valley. Some call this area Early Gulch. I’m not sure of the source of the name, but it makes sense.


Roaring Fork Valley Phenology | August 12, 2013

More Abundance!

Chokecherry, Prunus virginiana are beginning to ripen this week. This picture was taken August 10 on the Rio Grande trail near Aspen. The incredible flower display of late June has transformed into many sweet, yet often astringent (bitter/puckery) berries. Chokecherry attracts birds and mammals that eat the berries then pass the seeds through their digestive tract, depositing the seeds at new sites for germination. Viable seeds can be moved long distances this way.