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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.


Summer Bugs!

Insects are some of the most diverse, abundant and ecologically important organisms on the planet.  It may not surprise you that insects can be found just about anywhere, but the quantities in which they appear will probably astound you.


Roaring Fork Valley Phenology | August 5, 2013

Fireweed, Chamerion angustifolium is yet another wildflower that is blooming in abundance this year. They are in full flower this week and will begin to go to seed in the next couple of weeks.  

A bee getting nectar from a flower like fireweed will fly in low and move up the the flower stalk (raceme), visiting the low blooms first and then the higher ones.  I learned about the advantages of this upward nectar collecting to bees and flowers last week in the ACES pollination class taught by Rocky Mountain Biological Lab researcher Dr. Rick Williams. 



Morning Birding Species List | July 30, 2013

House wren - birding aspen

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!