Birdwatching at the Morrison Natural History Museum!

Last Monday, a snow storm hit Colorado....in the middle of May.  Although it snowed even as much as sixteen inches in some places, it melted pretty quickly afterwards, leaving an excellent opportunity for many birds that rely on insects for their meals.  After a rain, you can often see birds like the American robin or flicker foraging around (click HERE to read more), using the soft ground to their advantage to try and catch insects that were washed up out of the ground.  After the snow, it seems like a number of birds were attempting to do the same thing.  As I was closing up, I looked out behind the Morrison Natural History Museum, and noticed a bonanza of birds!  I ran downstairs and grabbed my camera, and tried to get some good shots.  Here, we have a male western bluebird (Sialia mexicana), perching on one of the blocks of sandstone from the historic Quarry 5 in Morrison.  This block contains dinosaur bone, making it ironic that the bluebird, a dinosaurian descendant itself, perched upon the block.

There were plenty of American robin (Turdus migratorius) running around, and got a few shots of them!

As we talked about in a PREVIOUS POST, winter causes many birds, including the American robin, to decrease their territoriality, and flock together.

There were several lark bunting (Calamospiza melanocorys) hopping around.  The lark bunting is actually the state bird of Colorado!

A European starling (Sturnus vulgaris) probes the ground.

There were several more male and female western bluebirds flitting around, and I got some pictures of them that I really like!  Below is a female perched on the fence next to the Jurassic Garden!

A male perched on a fence.  Notice the sexual dimorphism displayed here; the male displays much more vibrant plumage than does the female.

A female perched near my car!

Sometimes, I am really, really bad at identifying birds.  Below are two pictures of birds that I think I have identified correctly, but am not positive.  The first I think is a picture of a pair of chipping sparrows (Spizella passerina).

This one gave me a bit more trouble.  I think this bird is either a western wood-pewee (Contopus sordidulus) or a least flycatcher (Empidonax minimus).

Finally, a yellow-rumped warbler (Dendroica coronata)!

Works Cited:

Robbins, C. S., Bruun, B., & Zim, H. S. (1983). Birds of North America. New York: Golden Press.

Stokes, D. W., & Stokes, L. Q. (2010). The Stokes field guide to the birds of North America. New York: Little, Brown.

Mr. Bones Visits the Morrison Natural History Museum!

Yesterday, Mr. Bones, a local dinosaur enthusiast who's created some amazing looking dinosaur skeleton suits, visited the Morrison Natural History Museum!  The museum was also visited by Greg and Meredith Tally and their children, the fantastic people who are renovating the Best Western Denver Southwest to be a dinosaur-themed hotel!  All of these folks were here to make a brief teaser sort of thing to promote both the dinosaur hotel and the Morrison Museum!  I took a little bit of video, as well as some pictures, so make sure to check them out here!

 Greg Tally is attacked by Mr. Bones!

 Running is useless!

 Just a little too big for the door!

Below, we have a picture of Greg Tally helping out with the cameraman and Mr. Bones!

If you want to see some video of the museum's encounter with Mr. Bones, check out the video below!

Here, we have some shots of Mr. Bones taking a swipe at the museum sign out on the road!

Kids LOVE Mr. Bones!

 One of his other suits, a Utahraptor!  All of the other shots are of him wearing his "Kindergarten Tyrannosaurus rex" suit!

 A size comparison between the two suits.

 Mr. Bones goes in for the kill!

Stegosaurus at the Morrison Natural History Museum (Stegosaurus Week)

So as you probably know (at least if you've been following us here for Stegosaurus Week), the whole point of the special week was to celebrate Stegosaurus Day at the Morrison Natural History Museum in Morrison, Colorado!  But what Stegosaurus-related exhibits does the Morrison Natural History Museum even have?  Well.  I am so glad you asked.  Let's dive on in!  

The first Stegosaurus-related thing that you will see is just a small exhibit, whose size is not a good representation of its importance.  The four groups of bones that you see here are part of the holotype specimen of Stegosaurus!  It was with these bones, as well as the rest of the specimen (part of which is at the Morrison Museum, the rest in the collections at Yale in Connecticut)  that paleontologist Othniel Charles Marsh first named and described the genus Stegosaurus in 1877, during the famous (or rather, infamous) Bone Wars.  Below, we have a picture with the four different groups of bones highlighted in red. 

The first bone that we see below is part of one of the plates of Stegosaurus!  The entire specimen actually extends back several inches, but the fossil part of the specimen is only on the very top layer.

Next, we have part of the femur of Stegosaurus!

Here we have two different types of vertebrae of Stegosaurus, lumbar and caudal (back and tail) vertebrae.

The next picture is an illustration by paleoartist Fabio Pastori of what this animal would have looked like.  Meet Stegosaurus armatus, one of four species of Stegosaurus that are currently considered to be valid!

Next, we have some more VERY interesting Stegosaurus fossils, as well as a cute little baby Stegosaurus model!  This little guy below is about a foot long, and is a life-size representation of the animal that would have made that footprint.  Besides being the very first baby Stegosaurus footprint discovered anywhere in the world, this footprint is especially interesting because it shows that the baby Stegosaurus was walking on its back legs, without its front legs touching the ground!

Here we have another Stegosaurus footprint: or rather, a trio of footprints!  The main footprint on this slab of Jurassic-aged rock contains what is largely considered to be the best adult Stegosaurus hind foot track in the world!

This footprint-containing slab is of particular importance to the paleontological community for another reason other than preservation quality: not only does the slab contain a very well preserved hindfoot track of an adult Stegosaurus, it also contains a forefoot track, probably from the same individual, as well as a partially crushed juvenile Stegosaurus track.  This partially crushed juvenile Stegosaurus track is of particular importance, as it seems to be pretty strong evidence that the adult and the juvenile were traveling together! 

Next, we have a cast of a skull of Stegosaurus, next to a cast of the foot of the animal, as well as a reconstruction of the foot itself! 

Next, we have a VERY interesting block of fossil-containing rock!

It all started when the block was brought into the museum because of the dinosaur bones, like the rib bone you can see below from an unidentified dinosaur....

....and these bones, on the back of the block.  It wasn't until the block was brought inside the museum that researchers noticed something that they hadn't been able to see outside: some tiny dinosaur footprints!

Here are two of the footprints, below.  The one on the left, about the size of the palm of my hand, is thought to belong to a mid-sized ornithopod, likely a hypsilophodont or a heterodontosaur, we don't really know.  The much smaller one on the right (which isn't much larger than a house cats) is even harder to identify, and could belong to a wide variety of dinosaurs.

  

Here is another picture by Fabio Pastori, depicting the small ornithopod that might have made the tracks.

The other tracks on the slab are by and large considered to be much more interesting.  What you are looking at below are some more baby Stegosaurus footprints!  Remember the baby Stegosaurus footprint that we discussed below, and remember the model of the animal that was thought to have made it?  The model is about the size of the animal that is thought to have made the little tracks on the left in the picture below!  What's particularly interesting about these footprints, however, is that they show the footprints of at least two individual Stegosaurus, each probably just a few months old, superimposed on each other!  This seems like pretty good evidence that these guys were also moving in groups, just like the other slab of Stegosaurus footprints shows us with older individuals!  The smaller footprint on the right (again, around the size of a domestic cat's footprint) is from a much smaller individual, probably just a hatchling!  It is also possible that this hatchling was moving with the other juveniles, as well!  

This is a model of the hatchling Stegosaurus that made the footprint on the right in the three pictures that we have above.

Finally, we have a size comparison of footprints of Stegosaurus at different ages!  The bottom one is from an infant Stegosaurus, maybe an inch and a half or so in diameter.  The top one is from an adult, larger than your average dinner plate!

Want to learn more about Stegosaurus and it's relatives? Well, check out the Homebase for Stegosaurus Week HERE to partake in more of the festivities!