I had been seeing Turkey Vultures and Red-tailed Hawks (three of them!) soaring around the western part of the trail, but didn't think much of it. But then a large black shape soared overhead and I saw both a white head and white tail. I tried to get a picture but it was gone. Then I walked back upstream and saw it perched in a cottonwood across the river. Apparently the hawks and the vulture had been expressing a certain amount of concern because they were all circling the perched eagle. The eagle was unperturbed and was still perched in the same spot when I left towards home.
Showing posts with label Haliaeetus leucocephalus. Show all posts
Showing posts with label Haliaeetus leucocephalus. Show all posts
Monday, February 1, 2021
It's Been Awhile: Bald Eagle on the Tuolumne River Today
My friends in the Pacific Northwest, Alaska and Canada might not be much impressed by a sighting of a Bald Eagle on the Tuolumne River Parkway Trail today. But it was memorable. I saw not a single one on the trail last year (a good friend saw one, though). In fact, I only saw one anywhere in the entire county last year. The last eagle I saw here hung around for a few short weeks in 2019, and that was the first recorded sighting for that part of the river ever (although neighbors have told me of past sightings).
Tuesday, December 24, 2019
Avian Dinosaurs: Bald Eagles at the Sacramento National Wildlife Refuge
Sometimes I am reminded that the dinosaurs never actually went extinct. They were decimated certainly, and their present-day species don't look all that much like their ancient ancestors, but there are occasional clues to their dinosaurian past. The claws of a Bald Eagle (Haliaeetus leucocephalus), for instance. We were at the Sacramento National Wildlife Refuge just before Christmas, and saw several of birds at close quarters.
How close are the birds to the dinosaurs? Dinosaurs are classed as reptiles, but the reptiles we know today, the lizards, snakes, turtles, and crocodiles, were separate evolutionary lines in the Permian and early Triassic, before the dinosaurs even arose. The crocodilians are the closest of these ancient relatives, but they were already on their own evolutionary path during the Jurassic and Cretaceous periods when the dinosaurs were dominating the terrestrial habitats of the planet.
The birds on the other hand developed from the dinosaurs, descending from small theropod carnivores similar to the Velociraptor or Deinonychus, monsters made famous in the Jurassic Park movies. Evidence has emerged in recent decades that many dinosaurs may have in fact sported feathers (which are modified scales). Many bird embryos support teeth that are later resorbed during development.
In any case, that's what I was thinking about as we came across at least three Bald Eagles while traveling the auto tour route at the Sacramento Refuge. There were a couple of immature individuals and one adult. They were accustomed to automobiles passing by so they didn't retreat as we passed by, enabling me to get a zoomed view of their claws.
One juvenile was still hanging out with mom, while the other was on its own. They were a sight to see in the rain (that's why they all looked a little scruffy; they were generally soaked).
How close are the birds to the dinosaurs? Dinosaurs are classed as reptiles, but the reptiles we know today, the lizards, snakes, turtles, and crocodiles, were separate evolutionary lines in the Permian and early Triassic, before the dinosaurs even arose. The crocodilians are the closest of these ancient relatives, but they were already on their own evolutionary path during the Jurassic and Cretaceous periods when the dinosaurs were dominating the terrestrial habitats of the planet.
The birds on the other hand developed from the dinosaurs, descending from small theropod carnivores similar to the Velociraptor or Deinonychus, monsters made famous in the Jurassic Park movies. Evidence has emerged in recent decades that many dinosaurs may have in fact sported feathers (which are modified scales). Many bird embryos support teeth that are later resorbed during development.
In any case, that's what I was thinking about as we came across at least three Bald Eagles while traveling the auto tour route at the Sacramento Refuge. There were a couple of immature individuals and one adult. They were accustomed to automobiles passing by so they didn't retreat as we passed by, enabling me to get a zoomed view of their claws.
One juvenile was still hanging out with mom, while the other was on its own. They were a sight to see in the rain (that's why they all looked a little scruffy; they were generally soaked).
Tuesday, August 6, 2019
Bald Eagles Nesting at Neah Bay, Washington
Our trip to British Columbia didn't have a great many chances for birdwatching. Teaching a field course is like that...time after time, I'll be talking to the students about rocks or something, and some bird, quite often an unusual species will be hopping from branch to branch behind the students. I want desperately to lift the camera and start snapping away, but I'm a professional, darn it. I grit my teeth and keep talking, and students never have any idea the inner struggle I'm going through.
In any case, I had a lucky moment on our first day of our trip, when we headed out to the Olympic Peninsula in Washington. The gang was touring the Makah Cultural Center at Neah Bay and I stepped out for a moment. I heard a bit of a commotion outside the museum and I looked high into a fir tree just behind the museum and saw a pair of Bald Eagles (Haliaeetus leucocephalus) attending to their nest. There was a lot of activity, but I never got a look at any young eagles.
In any case, I had a lucky moment on our first day of our trip, when we headed out to the Olympic Peninsula in Washington. The gang was touring the Makah Cultural Center at Neah Bay and I stepped out for a moment. I heard a bit of a commotion outside the museum and I looked high into a fir tree just behind the museum and saw a pair of Bald Eagles (Haliaeetus leucocephalus) attending to their nest. There was a lot of activity, but I never got a look at any young eagles.
Sunday, June 23, 2019
Notes From the Road: Bald Eagle at the Mima Mounds Natural Area Preserve
It's summer as of yesterday, and so of course Geotripper and Mrs. Geotripper are on the road to parts unknown. We'll meet in a few days with our students and explore British Columbia and the Olympic Peninsula along with other fascinating locales. On the one hand, that means a chance to see some new birds, but on the other, blogging is likely to be spotty.
It didn't take us long to see a bird that is only occasionally seen in our region, but is relatively common in the Pacific Northwest: the Bald Eagle (Haliaeetus leucocephalus). It was flying above the prairies of the Mima Mounds Natural Area Preserve, a fascinating place with an interesting geologic story, soon to appear over at Geotripper.
More bird reports are expected to follow!
It didn't take us long to see a bird that is only occasionally seen in our region, but is relatively common in the Pacific Northwest: the Bald Eagle (Haliaeetus leucocephalus). It was flying above the prairies of the Mima Mounds Natural Area Preserve, a fascinating place with an interesting geologic story, soon to appear over at Geotripper.
More bird reports are expected to follow!
Friday, February 8, 2019
Bald Eagle on the Tuolumne River Update: It's Still There!
It was pretty exciting to see a Bald Eagle in our neck of the woods last Wednesday. And I was pretty sure it was a one-time sighting given that I've been walking the trail non-stop for three or four years, and I never saw one before two days ago. I figured it was on the way to Turlock Lake where the fishing might be better.
I was busy with errands today, but as the sun was setting and the rain was starting to fall I decided to do a quick check of the river. And it was there, just a few hundred yards farther upstream. Even better, it was just across the river from the trail. I had the chance to get a few more pictures, from a closer vantage point.
It may be gone tomorrow, but it would sure be interesting to see how things change around here if it decides to hang out for a while...
Wednesday, February 6, 2019
New Bird Today on the Tuolumne River: A Bald Eagle!
Sometimes a new bird discovery is a quiet affair. The other day, for instance, I saw my first Fox Sparrows along the Tuolumne Parkway Trail (I've seen them elsewhere, but not on the home trail). They were quietly scratching away in the dirt looking for food while I took a few pictures.
But sometimes things are a little more dramatic. I was out on my normal walk on the river trail checking out the hawks and an uncharacteristically large grouping of Double-crested Cormorants, meaning the day was already a success in my mind. Then I saw the hawk take off and my attention shifted for moment when a very large bird appeared close by, flying low over the river. I had the impression of a light hindquarter and overall dark color, and even thought "Bald Eagle?" but I hadn't gotten a good look at all.
Suddenly there was some shouting above me, from the top of the bluff. "Garry, did you see that?" I don't usually expect to hear my name coming from up in the sky, but I quickly remembered a friend who lives in a house on the bluff overlooking the river. I asked if it was a Bald Eagle (Haliaeetus leucocephalus) and they said yes. I headed upstream as quickly as I could in the vain hope that the eagle had landed somewhere, but it eluded my careful search.
I returned to the trailhead vacillating about whether to report the eagle on eBird. It occurred to me to check with my friend on the bluff when I finished hiking, and it turned out that they watched it land in a tree up the river. It was right next to where I had been searching, but I had missed it entirely. They mentioned that I might get a better view from the access road for the Water Treatment Plant. I drove over, and there it was! I went home and got Mrs. Geotripper and we headed back and got some pictures of the first Bald Eagle reported on the Tuolumne Parkway River Trail (the first time it's been officially reported anyway; my friends tell me they've seen an eagle fly by once in a while during winter).
Friday, July 27, 2018
Bald Eagles at Cape Disappointment State Park in Washington
| A unique viewpoint of a Bald Eagle at Cape Disappointment, WA. Photo by Mrs. Geotripper |
We spent a couple of weeks in the Pacific Northwest, and saw them in a few places. We spent a night at Cape Disappointment State Park in Washington, and saw our first eagle in the pines along the shoreline of the Columbia close to the river's mouth.
The next morning we set forth in the unending search for coffee and food, and went out on the beach at Seaview, just a few miles up the coast from Cape Disappointment. There were a lot of large dark-colored birds gathered on the beach with this eagle just down the shoreline a bit. The birds turned out to be Turkey Vultures working on some kind of carrion, and the eagle had either finished with its share, or was waiting for a chance at the mess, but was outnumbered by vultures.
I've been reading how Bald Eagles are a major nuisance in parts of Alaska, especially Dutch Harbor where the fishing boats dock. Some people have even been injured when they have gotten between an eagle and some kind of food source. But here in the lower 48 states, they are less populous and more fun to observe.
Monday, March 12, 2018
The Last Days of Winter in the Great Valley (and a Bald Eagle)
We spent part of the weekend out at the coast, but coming home in Bay Area traffic was no fun. As we approached the Great Valley, we decided to get off the main highway and check out things at the Beckwith Road Viewing Platform, part of the San Joaquin River National Wildlife Refuge. At times during the winter season, tens of thousands of Aleutian Cackling Geese, White-fronted Geese, Snow Geese, and Ross's Geese will congregate in the fields around the platform. But winter is almost over and the huge flocks are beginning to disappear as they begin their northward migration.
![]() |
| Photo by Mrs. Geotripper |
I've seen a number of Bald Eagles in the last few years, but most of them have been in the Pacific Northwest. They are resident in the local region, but not overly common. I've only seen one at this spot in the past, in 2015 (see the pictures here). A check of eBird indicates a sighting of two eagles in November of 2017, but no other reports since 2016.
Bald Eagles are big birds. Really big. Cows were strolling in front of the eagle, providing a sense of scale. Their wingspan can exceed six feet, which became apparent when it took off, again in front of the cow.
It was a great ending to our weekend!
Monday, January 8, 2018
Bald Eagles at the Sacramento National WIldlife Refuge
We've never had a disappointing trip to the Sacramento National Wildlife Refuge between Williams and Willows in California's Great Valley. We usually make it there during our trips north at Thanksgiving and Christmas, but we sometimes drop in during the summer if we are traveling that way.
There was a lot going on when we came through at the end of December. I literally was stepping out of the car at the visitor center parking lot when someone pointed out the Bald Eagle (Haliaeetus leucocephalus) sitting in the eucalyptus trees a few yards away. We saw four more of them along the six mile auto-tour route, two adults and two juveniles.
I know that folks farther north don't get quite as excited at seeing this interesting bird since they are more common up north, but I've only seen a couple of them in our region, so this is more of an event for me. I read interesting accounts of the hundreds of eagles that pester fisherman and residents of fishing villages in Alaska.
Still, these thieving lazy birds (by some accounts, including Benjamin Franklin) are interesting to watch. They do have that certain bearing...
There was a lot going on when we came through at the end of December. I literally was stepping out of the car at the visitor center parking lot when someone pointed out the Bald Eagle (Haliaeetus leucocephalus) sitting in the eucalyptus trees a few yards away. We saw four more of them along the six mile auto-tour route, two adults and two juveniles.
I know that folks farther north don't get quite as excited at seeing this interesting bird since they are more common up north, but I've only seen a couple of them in our region, so this is more of an event for me. I read interesting accounts of the hundreds of eagles that pester fisherman and residents of fishing villages in Alaska.
Still, these thieving lazy birds (by some accounts, including Benjamin Franklin) are interesting to watch. They do have that certain bearing...
Thursday, August 17, 2017
A Bald Eagle at the Rocky Creek Bridge in Oregon
It's probably no secret that I'm in Oregon this week attempting to see the total Solar eclipse. Time will tell if we manage to find a spot in the path of totality, but in the meantime we have having a great time visiting family and seeing the sights. Among them was a Bald Eagle (Haliaeetus leucocephalus), which we saw during a short stop at Rocky Creek Bridge near Depoe Bay.
The Eagle was first sighted flying across the small cove carrying a good-sized fish (and being harassed by a gull who was hoping for the eagle to loose its grip). Someone better versed in fish will have to determine the species.
The Eagle flew to a tree across the cove and alit in a fir. The Bald Eagle is relatively common in the Pacific Northwest, so folks up this way probably don't get all that excited to see them, but I've only seen them a few times down in California, so this was kind of exciting.
Rocky Creek Bridge was built in 1927, linking Otter Creek to Depoe Bay. It was bypassed by Highway 101 in 1955 and was closed for a time, but was later reopened to allow a scenic loop to follow along the sea cliffs below 101. The wave action in the small cove is hypnotic.
The Eagle was first sighted flying across the small cove carrying a good-sized fish (and being harassed by a gull who was hoping for the eagle to loose its grip). Someone better versed in fish will have to determine the species.
The Eagle flew to a tree across the cove and alit in a fir. The Bald Eagle is relatively common in the Pacific Northwest, so folks up this way probably don't get all that excited to see them, but I've only seen them a few times down in California, so this was kind of exciting.
Rocky Creek Bridge was built in 1927, linking Otter Creek to Depoe Bay. It was bypassed by Highway 101 in 1955 and was closed for a time, but was later reopened to allow a scenic loop to follow along the sea cliffs below 101. The wave action in the small cove is hypnotic.
Saturday, December 31, 2016
Juvenile Bald Eagle at the Sacramento National Wildlife Refuge
| Photo by Mrs. Geotripper |
The Bald Eagle (Haliaeetus leucocephalus) is of course the national bird of the United States, and it seems ironic that we just about killed it off, as the state of California did with its mammal, the California Grizzly Bear. The eagles were hunted, for one, but they were also poisoned by DDT. Their numbers plummeted in the middle 1990s, but the ban on DDT and their listing as an endangered species allowed their numbers to recover. I fear we are entering another dark age, as the politicians who are taking power in a few weeks have stated their opposition to both the Endangered Species Act, and the control of poisons in our environment through the Environmental Protection Agency. We have so much to lose.
A short postscript. Mrs. Geotripper reminded me that I took a short video of the eagle! Here it is:
Friday, December 30, 2016
Bald Eagle at the Sacramento National Wildlife Refuge (and one in Oregon)
| Photo by Mrs. Geotripper |
The Sacramento Refuge has a very scenic backdrop for bird viewing, with the highest part of the California Coast Ranges to the west, Lassen Peak and other volcanoes to the north, and the Sutter Buttes to the southeast.
We mentioned our excitement about seeing eagles on our Facebook page, and found out that two of them were sitting in a tree next to the Oregon house that we had just left! It's too ironic. Anyway, I did actually see one of those eagles in Oregon, but it was high above, and I got just this fuzzy shot of it soaring over my head.
Wednesday, May 25, 2016
Bald Eagles Nesting Near St. Louis
If you've been following my last few posts, you'll know that I was in St. Louis over the weekend for a wedding. Being not one of the bridal party, instead being just an uncle, I didn't have to get caught up in the maelstrom of wedding planning. The groom's father didn't have a lot to do on Saturday, so he took me kayaking on an 80-acre lake on the outskirts of St. Louis. One of the attractions, besides being my first kayaking "adventure", was a Bald Eagle nest along the shoreline.
I'm amazed, of course, that my camera didn't end up on the bottom of the lake, and we were able to float close enough for some good shots of the Bald Eagle family. Both parents were in attendance, along with one chick, which appeared to be getting reasonably close to being a fledgling.
Bald Eagles (Haliaeetus leucocephalus) got treated rather shabbily for being our national bird. They were shot and poisoned almost to extinction in the lower 48 states, and the widespread use of DDT made things worse. They have recovered nicely, and are reclaiming much of their lost range. It was nice to see a thriving family in the Midwestern U.S.
I'm amazed, of course, that my camera didn't end up on the bottom of the lake, and we were able to float close enough for some good shots of the Bald Eagle family. Both parents were in attendance, along with one chick, which appeared to be getting reasonably close to being a fledgling.
Bald Eagles (Haliaeetus leucocephalus) got treated rather shabbily for being our national bird. They were shot and poisoned almost to extinction in the lower 48 states, and the widespread use of DDT made things worse. They have recovered nicely, and are reclaiming much of their lost range. It was nice to see a thriving family in the Midwestern U.S.
Subscribe to:
Posts (Atom)
