Mission: To promote the appreciation of wildlife and increase harmony between humanity and nature.

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Showing posts with label Fledgling. Show all posts
Showing posts with label Fledgling. Show all posts

Saturday, July 18, 2020

Eaglet Update

Congratulations to Tyler and Sue! They saw the same thing I saw yesterday morning but they came to the correct conclusion. I too saw no sign of Tsuloss in the nest on Friday morning. There was a lot of nearby construction noise. On previous occasions, in similar seeming situations, Tsuloss had been laying down in the nest, invisible from the ground until she moved about.

Yesterday afternoon, after being inspired by Tyler and Sue, I went back to double-check. There was still no sign of Tsuloss in the nest or the nest tree. I crossed over to the north side of Montlake Cut.  I was hoping the angle would increase my visibility into the nest. Still, there was no sign of Tsuloss.

I was a bit despondent until I heard a faint 'Tsuloss-like' cry. I turned to the east and saw the flash of a dark eagle flying towards Monty and Marsha's favorite hunting roost, just north of the Waterfront Activities Center. It was Tsuloss. She landed in the old-world cedars.


For a few minutes, she was harassed by a gull.

After Monty, her father, circled the area the harassment stopped. He may have been carrying food. Although, I did not see a food delivery to Tsuloss or either of them actually eating.

Monty landed nearby where he could keep a close eye on Tsuloss.

Tsuloss stared back at Monty while continuing to beg for food. I watched for quite a while before needing to head home. Both eagles seemed to settle in.

This is my last photo of Tsuloss, from when she was consistently in the nest tree, which was taken on Wednesday evening. This means she most likely left the tree on Thursday the 16th or Friday the17th. Thanks again to Tyler and Sue for realizing what was happening.

The obvious winner of our contest to guess Tsuloss' first flight is:

July 1st - Barry Saver
July 4th - Larry Hubbell
July 6th - Joe Clancy
July 8th - Cynthia Jones
July 9th - Lynne Kelly
July 10th - Lynn Adams
July 14th - Helen Spiro
July 15th - Jeff Graham
July 16th - Audrey Weitkamp
August 2nd - Tyler Mangum
August 3rd - Sue


Congratulations, Audrey!

Thank you to everyone who played and to all of you who followed along!


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Nature is a wonderful teacher. This week I learned, once again, how misconceptions can lead one to erroneous assumptions and the need to constantly validate our assumptions.  


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Last year, after Monty and Marsha's young eagles fledged, the parents often brought food to the nest and the young returned and ate their meals in the cottonwood. Yesterday, I was asked where the young one will spend her nights. I had to say I don't know. It will be very interesting to watch and see what happens over the next few weeks. I certainly hope you are able to get out and observe the process. There is always more to learn!

Have a great day on Union Bay...where nature lives in the city and Black Birders are always welcome!

Larry

Sunday, September 23, 2018

Young Owl Feathers

Earlier this week I was attracted by the sound of an irate crow near the mouth of Arboretum Creek. As I crept closer to the commotion I spotted this owl. The sleepy predator was obviously the object of the corvid's disaffection.


It has been roughly three months since we watched this young Barred Owl leave the confines of its original home. You may read the story in the June post named, An Owlet Adventure. 

In late July, I spotted this pair near the mouth of Arboretum Creek. Clearly, the larger bird on the right is an adult and most likely female. In *Birds of North America it says that female Barred Owls can weigh 30 to 40 percent more than their mates. I wondered if the bird on the left was her mate or her offspring. After comparing this picture with the following photos I am thinking he is most likely her mate.

When the owl which I was watching this week shivered, I caught this rather unusual photo showing its feathers all askew.

A moment later, the feathers fell back into place. Even so, there was an unusual 'ruff' of feathers sticking up around the owl's head.

As the owl began waking up and looking around, these next few photos show little wisps of downy feathers momentarily sticking out at odd angles.

I do not remember the day being especially windy. In any case, I have never seen a whole clump of feathers stick out like this with a mature Barred Owl. There are other clues which I believe indicate this bird's immaturity. 

When the bird flew to a nearby perch the collar or ruff around the head stood out even more. 

The fact that the owl landed on a branch having a 45 degree angle also makes me think it was young. Adult owls have a strong preference for horizontal branches. I suspect a flat perch enables the owls to have a wider radius of attack and therefore increase their odds of a successful attack.

For example, from this perch any potential prey on the owl's right side would have extra time to escape while the owl attempted to navigate around the branch.

The next perch the owl chose had the same type of drawback. However, this angle of observation provides another clue regarding the bird's age. Birds of North America refers to the work of A.C. Bent when it states that in their first few months, young Barred Owls replace most of their body feathers - but not their wing or tail feathers. 

This information is helpful because the light barring on young tail feathers is more buff colored - instead of white. By next Spring the buff coloring should be gone.

I suspect the extensive personal grooming may be partly due to all the young downy feathers needing to be removed.

Certainly, this resulting pose is not common among adult owls.

Feathers sticking out in multiple directions reinforces my conclusion.

One year I watched and heard four young Barred Owls in Arboretum begging their parents for food. This year there was only the one successful fledgling. I never heard it begging. Maybe the two-to-one ratio of parents to offspring helped keep this bird very well fed. It is reassuring to know that this bird has survived the summer and is well on its way toward maturity.

As I prepared to leave, the young owl moved to a more horizontal branch closer to the stream and assumed an active hunting stance. I suspect that by next Spring, when the parents begin to focus on raising a new brood, this young bird will have been totally on its own for a number of months. Hopefully, its growing maturity will help this bird survive the challenges of winter.

Have a great day on Union Bay...where nature grow's up in the city!

Larry

Recommended Citation

Mazur, K. M. and P. C. James (2000). Barred Owl (Strix varia), version 2.0. In The Birds of North America (A. F. Poole and F. B. Gill, Editors). Cornell Lab of Ornithology, Ithaca, NY, USA. https://doi.org/10.2173/bna.508

Bent, A. C. 1938b. Life histories of North American Birds of Prey (Part 2). Orders Falconiformes and Strigiformes. Bull. U.S. Nat. Mus. (170):viii-482.


Going Native:

Without a well-funded Environmental Protection Agency, it falls to each of us to be ever more vigilant in protecting our local environments. Native plants and trees encourage the largest diversity of lifeforms because of their long intertwined history with our local environment and native creatures. I have been told that even the microbes in the soil are native to each local landscape. My hope is that we can inspire ourselves, our neighbors and local businesses to respect native flora and to support native wildlife at every opportunity. I have learned that our most logical approach to native trees and plants (in order of priority) should be to:

1) Learn and leave established native flora undisturbed.
2) Remove invasive species and then wait to see if native plants begin to grow without assistance. (If natives plants start on their own, then these plants or trees are likely the most appropriate flora for the habitat.)
3) Scatter seeds from nearby native plants in a similar habitat.
4) If you feel you must add a new plant then select a native plant while considering how the plant fits with the specific habitat and understanding the plant's logical place in the normal succession of native plants.

My intention in my weekly post is to include at least one photo each week and visually challenge us to know the difference between native and non-native lifeforms.


A)

B)
What species are these hoppers? Are they native to Union Bay?

















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Scroll down for my thoughts










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I know next to nothing about grasshoppers. This week, I am certainly looking for expert guidance. The best I was able to come up with is that A) looks like a true grasshopper and B) looks more like a locust. For comparison I looked at this Insect Identification Guide.








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The Email Challenge:

Over the years I have had many readers tell me that Google is no longer sending them email announcements regarding my posts. Even more frustrating when they go to 're-sign-up', hoping that will enable them to once again start receiving the announcements, they get a message which says 'Sorry, you are already signed up.' Google has not responded to my requests for help with this issue. 

My functional work around is to setup my own email list and each week I manually send out a new post announcement. If you are experiencing the issue and would like to be added to my personal email list please send me an email requesting to be added. Thank you for your patience!


My email address is LDHubbell@comcast.net




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Saturday, August 4, 2018

Lucy Leaves Home

During the last week Lucy prematurely left home. If she were human we might call her an underaged runaway. However, such a simple description oversimplifies her situation. For example, her nest actually left home before she did.

Lucy (on the right) about twenty feet below the last remnants of the nest.

On Sunday morning Lucy was no longer in the fork of the tree where the nest had been. Lucy is one two siblings who are apparently Monty and Marsha's first offspring. Before it disintegrated their nest had been located near the S.E. corner of Montlake Cut. Lucy's sibling, Charlie, is currently at PAWS recovering from a cracked pelvis which was suffered when a branch broke and the nest first began to fall. 

Around 8 a.m. on Monday, one of the parents returned to the nest site with food. The adult sat and consumed what looked like a fresh fish. The sticks in the lower left of the photo were all that was left of the nest.

Lucy sat on a limb below, looking up and crying incessantly. The adult glanced down at her but made no move to share. I wondered if this was 'tough love'. Was the adult trying to motivate Lucy to fly or was the adult apprehensive about landing in the thick foliage next to Lucy. The adult finished and left. Lucy's cries subsided. She seemed healthy and alert, but I was concerned. Could she fly? If not, how would she get food?

On Tuesday morning around 7 a.m. my friends, Tom and Helen, texted me. At first they could not find Lucy at all. Finally, they spotted her only 20 feet above the ground. She was in the next tree south of the nest tree. At the very least she must have glided to her new location. I arrived quickly and began hoping for encouraging signs.

Through out the morning Lucy sat, quiet but alert. She only lifted her wings and turned around two or three times. She did not practice flapping her wings or spend much time preening, which made me think she really wasn't ready to fly.

The parents did not feed her, she did not leave the branch to hunt and she did not cry out for food. This did not feel like a path to success. Around 11 a.m. Susan Ott, an observant and caring neighbor, showed up to check on Lucy. Susan had only stopped for a moment, but when she realized the uncertainty of Lucy's predicament she stayed.

Lucy slowly grew more active and started looking around apparently searching for nearby perches.

During the next hour Lucy hopped to a neighboring branch. Then, around noon she flew nearly fifty feet. Her flight was slow and awkward. She collided with low hanging leaves while steadily losing altitude.


Ultimately, she did a head-first, crash-landing into an old ivy-covered snag.

She flapped and fluttered futilely against the ivy, but appeared unharmed.

Finally, she gave up and let go. She came to rest in a mix of ivy and blackberry vines. For the next few hours she took turns resting and fighting through the foliage. She never got more than a single hop above the vines. 

We called Jeff Brown at PAWS. (Jeff previously rescued Charlie, Lucy's sibling.) While we waited Susan made a trip home and kindly returned with food. Jeff called back and suggested that officers from the Seattle Animal Shelter might be close by and hopefully available to rescue Lucy.

Lucy wandered deeper into the thicket and finally disappeared from sight. At this point, we were certain Lucy could not fly well enough to find food and feed herself. Her parents had not delivered any food for at least eight hours. Plus, it also appeared that they, Monty and Marsha, had no idea where she was. Lucy was essentially on the ground and unprotected.


Susan Ott slowly and carefully worked her way into the jungle of vines in an effort to relocate Lucy. When the Seattle Animal Shelter officers arrived she guided them to Lucy's location.

The officers, Robert Linke and Jon Wieringa, carefully secured Lucy and took her to PAWS where she could be fed, evaluated and temporarily reunited with Charlie. 

From left to right; Jim Green and Jeff Brown from PAWS along with Ed Deal and Patti Loesche from the Urban Raptor Conservancy.

By Thursday morning, Jeff had determined that Lucy was unharmed and could potentially be returned to her parents. Jeff also arranged to meet with Ed and Patti so they could give Lucy the appropriate federal 'wrist' band. The band was applied to her right leg. 

With exceptional eyesight, quality binoculars and a lot of luck you might be able to read the number, 629-45004. However, simply seeing the location of the band on the right leg may help with future identification.

As Patti applied the band, Ed explained that for most birds bands can be simply crimped into place. However, Bald Eagles are strong enough and smart enough to remove crimped bands. So, their bands must be locked with a rivet. The bands are carefully sized so they do not interfere with any of the bird's activities.

From Left to Right: Jim Green, Drew Foster, Clif Edwards and Michelle McCorran

Jeff also arranged for Drew and Clif, Arborists' from The Washington Park Arboretum, to return Lucy to her nest site. Michelle, from the United States Army Corp of Engineers, helped protect the public during the operation. (Michelle was also the one who originally called PAWS and got Jeff involved in rescuing Charlie.) In the background Jim from PAWS is working out technical details related to the eagle elevator. 

Clif begins the ascent to Lucy's nest site. 


I estimate the nest site at being about 100 feet in the air. In this photo Clif is about two thirds of the way to the site.

Drew and Clif trade off on the climbing. On this day Drew was providing ground support while at the very top of the photo you can see Clif has reached the nest site.

Here, Drew was preparing to send up materials for a temporary nest-like platform. The idea was that if Lucy could be returned to the site of the nest, hopefully the parents would resume feeding her and she could complete the normal branching process, which would end with her being strong enough to fly. After young eagles learn to fledge they usually spend a period of time with their parents learning to hunt, which would be the optimal way for Lucy to learn.

Clif preparing to receive materials

Jeff and Jim locking the escape hatch on the eagle elevator.

Cliff with the temporary platform installed and ready to receive Lucy.

The Lucy Lift in operation.

Sadly, just as Lucy was released the Blue Angels flew over and for whatever reason she was skittish and flew away. With great fear we watched as she flew all the way across Montlake Cut. Once again, she lost altitude the whole way. After she landed, she was unable to get airborne again. Luckily, Jeff and Jim were able to recapture her, unharmed. She was returned to PAWS, where she got another square meal. 

On Friday the process was repeated. This time the process was scheduled for after the Blue Angels completed their flights and her release was initiated from the ground. None the less she was still uncomfortable and as she was released she flew south and landed about halfway down in a large cottonwood behind the nest tree. (As of this morning she was still in the same location.)

The current assessment is that Lucy is too old to be returned to the nest site because she has consistently demonstrated the ability and desire to fly away. However, since she seems to only be able to fly down-hill, she is effectively only half-fledged. From my perspective half-fledged means she is capable of getting into trouble, but not capable of getting out. For example, she can fly well enough to land on the ground uninjured but she is apparently unable to get back to the safety of an overhead branch. The fear is that she could not escape from a coyote, raccoon or even an off-leash dog. 

If during the next few days you visit Montlake Cut or Montlake Park East (where the old Museum of History and Industry was located) please watch for Lucy. If you spot her on the ground please do not attempt to catch her but rather call PAWS or the Seattle Animal Shelter.

The phone number for PAWS is: 1-425-787-2500

The phone number for the Seattle Animal Shelter is: 1-206-386-7387

This is a unique situation where it would be best if the whole Montlake Community was watching for Lucy. So please feel free to forward the link to this post and ask your neighbor's for help.

Thank you in advance for your assistance.

Larry 


Going Native:

Without a well-funded Environmental Protection Agency, it falls to each of us to be ever more vigilant in protecting our local environments. Native plants and trees encourage the largest diversity of lifeforms because of their long intertwined history with our local environment and native creatures. I have been told that even the microbes in the soil are native to each local landscape. My hope is that we can inspire ourselves, our neighbors and local businesses to respect native flora and to support native wildlife at every opportunity. I have learned that our most logical approach to native trees and plants (in order of priority) should be to:

1) Learn and leave established native flora undisturbed.
2) Remove invasive species and then wait to see if native plants begin to grow without assistance. (If natives plants start on their own, then these plants or trees are likely the most appropriate flora for the habitat.)
3) Scatter seeds from nearby native plants in a similar habitat.
4) If you feel you must add a new plant then select a native plant while considering how the plant fits with the specific habitat and understanding the plant's logical place in the normal succession of native plants.

My intention in my weekly post is to include at least one photo each week and visually challenge us to know the difference between native and non-native lifeforms.




What type of plant is this? Is it native to Union Bay?








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Scroll down for the answer










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This is not the worst invasive plant, but it is not native to Union Bay. It is currently flowering in the Union Bay Natural Area. The highlighted links will take to two different sites, which will give you either a King County or a British Columbia perspective. 

l may be offline for a few days but I would love to hear if anyone can explain who and what  the wasp-like creature is doing on this plant. If you leave explanations in the comments section below the conversation can continue with or without me. (I think I understand what the Honey Bee is up to.)








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The Email Challenge:

Over the years I have had many readers tell me that Google is no longer sending them email announcements regarding my posts. Even more frustrating when they go to 're-sign-up', hoping that will enable them to once again start receiving the announcements, they get a message which says 'Sorry, you are already signed up.' Google has not responded to my requests for help with this issue. 

My functional work around is to setup my own email list and each week I manually send out a new post announcement. If you are experiencing the issue and would like to be added to my personal email list please send me an email requesting to be added. Thank you for your patience!


My email address is LDHubbell@comcast.net




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