Showing posts with label Bald Eagle. Show all posts
Showing posts with label Bald Eagle. Show all posts

Wednesday, February 19, 2014

Colorado Raptors of Winter: An Interview With Anne Price

You guys have heard of Anne Price from the Raptor Education Foundation (REF) before: she's the one who brings all of the awesome birds of prey to the raptor shows at the Best Western Denver Southwest dinosaur hotel!  Eager to learn more about some of the raptors that live here in Colorado during the winter, and how the change in weather affects the birds behavior!  She was nice enough to oblige, and the answers were definitely very interesting!  So after you check out the REF website HERE and like their Facebook page HERE, please join me in welcoming Anne Price, Curator of Raptors at the Raptor Education Foundation!
Anne Price with a prairie falcon at the Best Western Denver Southwest!
1. What raptors are you likely to see if you live along the Front Range here in Colorado?

The big four hawks are: red-tailed hawk (year round), Swainson’s hawk (April through early October), rough-legged hawk (October through March), and Ferruginous hawk (year round, but rare on front range in summer months).  Turkey vultures in spring, bald eagles in winter, golden eagles, Cooper’s hawks and American kestrels year-round, turkey vultures and osprey from March through October.  There are more species around but these are the most likely to be seen by the average birder.
A red-tailed hawk at another one of the raptor shows at the Best Western!
2. What raptors have migrated away that you would be able to see along the Front Range during the summer?

Turkey vultures and Swainson’s hawks.
Anne Price holding a turkey vulture!
3. What special behavior, such as courtship rituals or other behaviors like that, can you observe in raptors during December and January along the Front Range?

You may see red-tailed hawks and bald eagles start to sit next to each other in trees or along telephone poles. The big excitement comes from great-horned owls, which will begin courtship calling (hooting back and forth) in the middle of the night, starting around Christmas Day.
Anne holding a great-horned owl!
4. Do the raptors at the REF change their behavior at all during the winter? If so, how do they change?

Our birds eat more, so we feed them more to put on just a bit more fat for the cold weather. Our two Swainson’s hawks get feisty and start stealing food because their metabolism is telling them that they need to bulk up for a long migration ahead. I always let them gain 1-3 oz during this transition so they are ready for the cold, which came early this year and was REALLY cold. Our female golden eagle will also start gaining weight and developing a brood patch as she gets ready to lay her eggs in early March. She has gained 9 oz just in the last 2 weeks!
A golden eagle takes flight in Dinosaur National Monument!
5.  Finally, I remember you mentioning the black streaks under the eyes of the prairie falcon as a glare reducing adaptation. What can you tell me about that?

It’s called the “malar stripe” or “malar mark.” It’s meant to reduce glare by having the sun strike or be concentrated in the area beneath the eye, leaving the area above in proper contrast. These are black or dark lines under the eyes of cheetahs, most falcons (gyrfalcons and merlins being notable exceptions).  Even flickers have malar stripes, though in these birds they serve as signals for courtship, not for better visibility of prey species!

Which is why the Rockies and the Broncos do the same thing…….
A REF prairie falcon at the Best Western!
Thank you so much Anne for taking the time out of your schedule to answer some of our questions!  I know I will definitely be on the lookout for these birds in the upcoming weeks, and hopefully everyone else will be, too!  Make sure to check out the REF Facebook page HERE, as well as their website HERE.  You can also come visit all the REF birds on Saturday, April 12 from 11am to 2pm! Admission is free and there will be giveaways and refreshments.  RSVPs are kindly requested; please visit http://www.usaref.org/OpenHouse.htm.  Thanks again, and keep an eye out for a follow-up post regarding those fascinating malar marks!

Thursday, August 15, 2013

Drive to Dinosaur: Dinosaur Road Trip With Grace Part 1

Last Sunday, my girlfriend Grace Albers and I drove down for a few nights to Dinosaur National Monument in north western Colorado and north eastern Utah!  We saw a TON of awesome things, and I am going to share it all with you over the course of numerous posts!  First off, here are some pictures from our drive down there!
First off, we nabbed a few pics of my cat, Chimney, and dog, Daisy, before we left!
Pyg stops for a rest break at Lake Dillon near Frisco and Silverthorne!
Some pretty scenery on the road again!








A nice lunch of home made pasta salad, thank you mother!

Around Rifle I believe, Grace spotted a bald eagle!  We were moving pretty fast (but not over the speed limit, of course), so we didn't get any good pictures, but it's still enough to tell that it's a bald eagle!
A bit after the bald eagle, we saw some pronghorn, one of my most favorite animals of all time!  We will be talking about the evolution of the pronghorns speed sometime within the next few weeks!
After the pronghorn stopped to look at us in the picture above, the pair took off, and we got some great action shots!
We kept driving, and got some more awesome shots of the surrounding landscape!
It wasn't too long before we saw our second group of pronghorn, this one much larger!  Pyg tried to spot them, but you really need a zoomed in picture to see them.  Actual eyes and a brain don't hurt, either.
Here are some closer pictures of the pronghorn!  Below is a picture of a female.
Next, we have several shots of several pronghorn, with the male being the individual on the far right (or the only individual in the shot).  While female pronghorn have horns just like the males, they are much smaller, and are rarely pronged.
This looks like a female and a calf grazing!
Several shots of the sagebrush shrublands: Grace really enjoyed the landscape, as did I!
Finally, we were getting close to Dinosaur National Monument!  We first reached the Canyon Visitor Center, which is situated right next to the beginning of the Harper's Corner scenic drive, which we will most definitely talk about later on!  While we were at the visitor center, Pyg desperately wanted her picture taken next to this pre-rennaisance, old school Allosaurus model!
Utah, at last!  More state signs need to have dinosaurs on them, in my opinion.
Some more landscape shots!



We reached the small town of Jensen, and then turned north on the final leg of our journey!  Right after the right turn however, we spotted some funky looking deer, and went back a little ways to check it out!  On someones private property was a group of several fallow deer, a species of deer that, although it has its origins in Europe and Asia, has been introduced on every continent except for Antarctica!  There were several small and cute fawns in the mix, as well!  Notice that all of the deer, regardless of age, are spotted.  Unlike the mule and white-tailed deer fawns that live here in Colorado, the adults do not grow out of their white spots, and instead keep them their entire lives!  We actually saw several of these critters at the drive through animal park near my Gramma Roo's house in Texas, click HERE to check out that post, too!
At last, we reached the national park!
We stopped just inside the park to consult the map, and to check out the Green River!  While our side of the river was National Park, the boundary of the park traced the rivers course for aways, as you can see in the picture of the map below.  Right on the other side of the river was actually cultivated farmland, whose green pastures was a stark contrast to the arid sagebrush shrubland and desert right on the other side of the river.  I wonder just how much water they use to keep all those plants green?  We will actually talk more about water related issues in future posts of this series, including a fascinating fact that I learned about a dam!  But that comes later....
There were several Canada geese on one of the sandbars.  It was weird for me to see them out here in the middle of nowhere: usually when I see them, they are pooping all over the green grasses of the schools near my house!
The scenery in the park is pretty spectacular, and here are just a few shots of some of the rocky outcrops that we saw right away!
We finally got to our campground, the Green River Campground (consult the map above), which, as you might have already guessed, is a campground right along the banks of the Green River.  (If you didn't get that one, don't worry about it, it was supposed to be a tough one, most people don't get it the first time, either.)  Here is a shot of some more gorgeous outcrops between the trunks of two cottonwood trees at our campsite, followed by a picture of our tent!
Immediately upon arrival, we were plagued by several golden mantled ground squirrels who were positively itching for food scraps from us humans.
After we'd settled in, we decided to walk down to the river for a few minutes.  It was really gorgeous there, and we saw a ton of what I think are frog eggs in the water!
It was getting late in the day, but before the sun set, we wanted to go exploring.  Grace is super into Archaeology (Grace:Archaeology::Zack:Paleontology), so we decided to go check out: some petroglyphs.
Join us for our next installment, coming shortly: In Which We Check Out Some Petroglyphs!
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