Showing posts with label wildlife. Show all posts
Showing posts with label wildlife. Show all posts

Saturday, May 9, 2009

Mating Weevils

Oh, geez, not another photo of a flowering plant!? Don't you have a separate blog for that?

If that's what you say when you see this photo, let me tell you, there is a lot more going on than first meets the eye. After all, flowers attract all sorts of pollinators--beautiful butterflies, zooming bees, fluttering hummingbirds. They also attract some rather odd-looking creatures. Just take a look at the photo below.

Nearly hidden on the leaves of this milkvetch are a couple weevils. Weevils can be identified by their long noses, and in fact are sometimes nicknamed snout beetles. There are over 60,000 described weevil species, and I'm sorry to say I don't know what these are. (But I want to, so if you recognize them please leave a comment!) 

But after having a job for many years that paid me to talk to people, I'm sure I can tell you something about these weevils. Like, they're mating. Yep, you are watching some weevils in action. 

I can also tell you that the first thing to distinguish weevils is by looking at their antennae--if they're straight, they are primitive weevils, and if they're bent, they are true weevils. Of course, the weevils' antennae aren't too obvious in this photo, and I didn't want to disturb them. 

Lots of weevils are pests, like the boll weevil that destroys cotton crops. I'm sure many of them have important niches in the environment. And last but not least, they can provide a couple minutes of distraction.

Thursday, April 30, 2009

Spring Birds and a

It's been fun seeing more flashes of color in the trees. Yesterday I saw that the goldfinches had regained their brilliant yellow feathers as they prepare for breeding season. They hang out around this area all winter, but turn a dull gray with just a touch of yellow. Now they're back to their magnificence. They're hanging out in mixed flocks with pine siskins, but before too long the pine siskins will be able to move up into the pines, where they'll make their nests.

Black-billed magpies stay here year-round, but here's one with a bit of vegetation in its mouth, presumably for a nest. It can take them up to 40 days to make their large nests.

Magpies, with their long tail and strong contrasting black and white feathers, are an easily recognizable sign that you're not in Kansas anymore. Actually, they do live in Kansas--but they don't live east of the Mississippi. This member of the crow family only lives in western North America.

Less conspicuous in color but noisier are the yellow-rumped warblers. All of the warblers head south for the winter, and the yellow-rumped is one of the first to return, often before it is warm.

The little patches of yellow on its rump, under the wing, and under the chin make it fairly easy to identify.

And along with the birds decorating the spring landscape, the snakes have left their dens. This is the common garter snake, the most widespread reptile in North America. They are harmless and eat everything from insects to small mammals to fish. In the West, they are often found near water.

Garter snakes have fascinating life histories. Well, it's time to head back outside and see what else is going on!

Wednesday, April 29, 2009

Giant Pollinating Moth

It's a bird, it's a plane, no...it's a giant pollinating moth that's hovering near the currant bush near our front door. I went out one evening and was surprised by the numerous moths zipping from one flower to the next.

A little research on the internet showed me that this huge moth that is almost the size of a hummingbird is called, get this, a hummingbird moth! The family, sphinx or hawk moths, are nicknamed hummingbird moths because of their resemblance.

This particular species is a white-lined sphinx moth (Hyles lineata). The species name lineata refers to the the white lines that stripe them. They also have a tan line down each wing.

The moths were constantly moving, and their long proboscis (that's a fun word to use), was obviously well-adapted for the deep tubes of the flowers.

Several white-lined sphinx moths darted around the bush, moving from flower to flower. They didn't seem particularly disturbed by me or Henry. Apparently they often prefer white or light-colored flowers because they are easier to see during dusk and night, their most active period.

Being moths, they have to go to a caterpillar stage, and they like to burrow into the ground. Wow! Caver caterpillars that morph into hummingbird-like moths. These are rad! Not only that, but they are found all over the U.S.

To learn more about white-lined sphinx moths, check out the great Butterflies and Moths website or see some awesome photos at this blog.

Saturday, April 25, 2009

The Birds are Back

It's been a lot of fun listening to the different sounds in the air as migrating birds pass through the area on their way further north and breeding birds return to make their nests and get ready to fill them.

One of my favorite bird sounds is the sandhill crane, which sounds like sort of a rattling, gurgling goofball. I know, that's highly scientific. Maybe it would be better to call them pterodactyls like my husband does. If you want to hear the call, click here and go about half-way down the page.

The sandhill cranes like to hang out in the fields eating grain and insects.

The pivots are big attractions for ravens and hawks. We call the hawks 'pivot hawks' no matter what species they are. The convenient high perch helps all the birds spot prey, like gophers.

Another noisy bird that's back is the long-billed curlew. That long bill is slightly different between the males and females, and they use it to eat little invertebrates, including digging earthworms out of the fields.

Here's a closer view of that cool-looking bill. It almost makes the bird look a little unbalanced. You can find out more "official" information here

There are a lot of other birds that have come back lately, and with the trees putting on leaves, it's getting harder to spot some of them. Some of the birds are busy building nests, while others are more intent on finding food. It's definitely a busy time of the year, and it's fascinating to observe it. So turn off your computer and head outside for one of the greatest shows on earth!

Saturday, April 11, 2009

Happy Easter Weekend

I wish you all a wonderful Easter weekend. I've been seeing lots of butterflies lately, a beautiful sign of life and rebirth. This is a mourning cloak (Nymphalis antiopa), a butterfly widespread throughout North America.

It was perched on our big apricot tree, flittering from branch to branch in the afternoon sunlight.
 
This large nest is a raven nest, and you can just barely see a black head poking out of it. Ravens are one of the earliest nesters in this area, and they are already sitting on eggs.

This little bird was on the grass at the post office, not too shy about collecting some nest material. It's a goldfinch, its colors muted at this time, but they will brighten as breeding season gets even closer.

The goldfinch was intent on finding just the right nest material.

I couldn't figure out what kind of butterfly this one is--after all, there are over 100 kinds where I live, and they don't even make sounds to give you an extra hint! That's okay, it's fun just to see that the colorful insects out and about. Very soon there will be an explosion of flowers,  giving them many more options for food. 

Thursday, April 9, 2009

The Coolest Desert Spring

We went and visited this super cool, downright fantastic spring this past weekend. Walking up to it, it might not seem that terrific, even though the sight of green algae and an open body of water is notable in the desert.

As I got closer, I realized that this spring is really something special. And a little dangerous. Underneath the algae, it suddenly became apparent that this little spring is not so little--the water is several feet deep. And it's unclear where the edge is with so much old vegetation surrounding it. Nevertheless, I wanted to get a little closer...

...to see the white sand at the bottom, and the little bubbles of air popping out of them. It was amazing.

I'd like to get on a float tube and just stare down at the water bubbling out. Maybe when it gets a little warmer. 

The spring is not just for oohing and ahhing, though. It provides important water for lots of organisms, including...

...this Columbia spotted frog. Desert Boy was fascinated and fortunately a little bit respectful. The frog was quite friendly and stayed rather still for its photo shoot. 

I love desert springs, there's such a contrast between the life-giving water and the arid surroundings.

NEWS FLASH---I've started another blog, called A Plant a Day. I'm on a mission to learn all the plants in the area where I live. There are about 1,000, so I figure it will take me a few years, but I might as well get started! Even if you aren't into learning plants, you can still see some some pretty pictures: http://aplantaday.blogspot.com.

Tuesday, April 7, 2009

Spring Scenes from the Ranch

Every day there are more signs of spring, and I love seeing them. My wildflower count is up to four (okay, three of those are non-natives, but at this point I'm so excited to see any extra bit of color). The greasewood is starting to get tiny leaves on it. More birds are arriving everyday: the sandhill cranes came a few weeks ago, and the curlews just a couple days ago. The western meadowlarks (photo above) hang out all winter, but they've started singing their exceptionally melodic "come hither" breeding song. They have an amazing ventriloquist ability, always sounding closer than they really are. I had to use a lot of zoom to get that photo.

Here's my action shot--the meadowlark flying away. Doesn't it take your breath away? Like lions pouncing on a kill or a kayaker about to go over a waterfall? Just say yes, and we'll move on.

When I was taking Desert Boy to the babysitter the other day, a huge herd of deer were out in the pasture. 

Apparently hunting season is a distant memory, for while they were alert when I stopped and started taking photos, they didn't bolt off. Do you see how they're all about the same size? Last year's fawns have really grown up a lot. It won't be too long before a new crop of fawns arrives.

The meadow still looks really brown, doesn't it? I guess even though I keep trying to find signs of spring, we have a way to go. 

Back to the deer. They're a good distraction. These are mule deer, so named because of their big, mulish ears. The better to hear, with, I imagine! 

Tuesday, March 24, 2009

Desert Destination: Crystal Ball Cave

Located in the west desert of Utah is Crystal Ball Cave, so named because the interior is filled with calcite crystals called nailhead spar. It's a little-known wonder well worth a visit.

For part of the Millikin University Spring Break 2009 trip, we headed out to Crystal Ball Cave.

The trip starts at the end of the driveway framed by hundred-year old Lombardy poplars. Jerald and Marlene Bates lead tours through Crystal Ball Cave, so if you want to go you need to call in advance (435-693-3145). The cave is on BLM land, but they have the mining rights so manage the cave.

After meeting Jerald, you follow him to the parking area for the cave and immediately realize he has a good sense of humor. He's lived out at Gandy for his entire life, and it was an uncle that found the cave in 1956. The uncle dragged young Jerald with him to help explore it. Jerald wasn't too enthusiastic due to previous unproductive trips, but this hole in the ground turned out to be different from the rest.

To reach the entrance of the cave requires a short hike. Jerald realizes when the group needs a break and points out plants and other things of interest.

At the cave entrance, he gives more background and tells everyone not to touch cave formations. Then it's time to go in. Jerald unlocks the door, and everyone walks into the dark cave.

A bunch of stalactites are near the entrance. There are no lights in the cave, so everyone needs to bring one.

I thought this weathered formation looked very interesting.

Patches of cave popcorn decorate some cave ceilings and walls.

Most of the cave formations are calcite, but some gypsum is also found in the cave.

Jerald was good at explaining the different types of formations in the cave, as well as the history of it.

This tall stalagmite was taller than everyone on the tour.

The trail goes next to this primitive ladder, leading up to an upper chamber. Jerald said he wouldn't go up it today.

The tour route is on the cave floor, next to more formations. Everywhere you look there's something interesting to see.

Although Crystal Ball Cave is only about 45 miles from Lehman Cave, it looks totally different. After the cave was dissolved away by carbonic acid, the cave filled several times with water supersaturated with calcium carbonate. The calcium carbonate precipitated out in a crystalline form, called nailhead spar. These crystals cover most of the surfaces in Crystal Ball Cave (hence the name of the cave). Walking into the cave is sort of like walking into a huge geode.
 
Over time, many of the crystals have been covered with sand and dirt, so they're not shiny, but they are large.

Ceilings, walls, and floors all have the nailhead spar coating. 

Sometimes it's more translucent and glows when you put a flashlight next to it.

Further into the cave are interesting formations called cave cones or raft cones. They are the remains of calcite rafts, thin layers of calcite on top of the water. When water dripped onto the calcite rafts, the rafts broke apart and formed into these mounds.

Besides the amazing cave, another appeal of the cave tour is Jerald's quick wit and funny jokes.
He enjoys showing people the cave.

Further into the cave the ceiling drops and requires some stoop-walking. 

Then the cave opens up again and you see what looks like moonmilk decorating the cave ceiling. Moonmilk looks sort of like white cheese that has oozed out of the carbonate rock. It may form due to chemical or bacterial causes. 

Near the exit is a very large rock that has some beautiful crystals exposed. There are a variety of colors.
A close up of the crystals reveals even more beauty.

Besides the geologic wonders, Crystal Ball Cave is a treasure trove of biologic wonders. A paleontological survey of the cave revealed bones from numerous animals. Some are no longer found at this low an elevation (like bighorn sheep), while others are now extinct. These animals lived in the cave vicinity tens of thousands of years ago, when the climate was much different. Roughly 15,000 years ago, the arm of a huge lake, Lake Bonneville, filled the bottom of the valley, and trees extended down near the lake margins. In this landscape, large-headed llamas, camels, small horses, helmeted muskox, American sabercat, and more roamed. 

Crystal Ball Cave is the first location that a new, extinct species of skunk (Brachyprotoma brevimala) has been described.

The cave tour exits from a different place than the entrance, and then it's time to walk back to the vehicles, looking out at the vastly different valley than was there not all that long ago. It would be interesting to come back in 15,000 years and see what it looks like then.
Related Posts Plugin for WordPress, Blogger...

blogger templates