anon6789

joined 2 years ago
[–] anon6789@lemmy.world 1 points 2 hours ago

You had me excited to read about this all day, but I was traveling and couldn't get to it until now.

I read the study paper and for the most part there wasn't too much more to it than what you said, but then the conclusion has me a little confused.

The fact that parents responded to a manipulation of UV reflectance of their offspring can not be due to UV coloration, because owls probably do not have a VS or UVS cone (Bowmaker & Martin 1978) and, at night, there probably is not enough light for colour vision. It is possible that the measured effect was due to a change in perceived brightness mediated by scotopic (rod) vision. Compared to diurnal species, owls have very few cones in their rod- dominated retina (Hart 2001). Owls, like some bats (e.g. Winter et al. 2003), may have a UV- transmitting lens and cornea and so the secondary (beta) peak of the pigment in their rods would capture UV light contributing to achromatic vision at low light levels. It is also possible that, even at low light levels, photopic discrimination was involved, but again the effect of UV would be via the stimulation of the beta peak of pigments in the cones. It has been reported that owls have cones containing oil droplets that are either colourless or only a pale yellow (Walls 1942), which presumably transmit UV light.

So if it's not a coloration difference, does that mean they are just seeing a brighter type of grey (greater amplitude) or are they seeing something else?

I'd like to learn more about their UV seeing abilities, but I feel in over my head. I feel this paper is pretty jargon heavy.

Very interesting stuff though!

[–] anon6789@lemmy.world 2 points 3 hours ago (1 children)

Oh I wasn't bothered by it at all, just surprised to see an owl post pop up somewhere else, especially an ID request. I found it though! 😊

[–] anon6789@lemmy.world 3 points 4 hours ago (3 children)

I just assume I've either entertained or annoyed everyone by this point that they know about the community one way or another by now. 😆

[–] anon6789@lemmy.world 3 points 4 hours ago (5 children)

It's the one job I'm here for!

I was a bit surprised to see this not in Superbowl.

[–] anon6789@lemmy.world 2 points 4 hours ago

I'm sure they have a lot of rare birds they could talk about! Well, rare to the rest of us anyway. They'd just be regular birds to them. 🤔

[–] anon6789@lemmy.world 5 points 4 hours ago

It feels more like compliance. They will hiss and click and puff up, but as soon as they're grabbed, they're usually pretty calm once they see they're not scaring you off.

Birds seem to really avoid fighting whenever possible. Losing the wrong feathers, breaking a bone, or getting a bad cut can all cost them their ability to fly, so if being menacing doesn't work, escape is usually the next best option if they aren't protecting their nest. If the opportunity isn't there to get away, they just seem to freeze up like this.

They're not enjoying it, but they seem to understand they aren't being actively hurt, so it's best to just wait it out.

[–] anon6789@lemmy.world 1 points 4 hours ago (2 children)

I've been searching up some rare owls to get some new photographers added to my feed, so there will be more weird and exotic ones coming up!

[–] anon6789@lemmy.world 6 points 5 hours ago (7 children)

This is my vote.

[–] anon6789@lemmy.world 2 points 8 hours ago

Definitely the start of a good wizard beard.

[–] anon6789@lemmy.world 3 points 8 hours ago

I'm always impressed with the quality of some of these images. With such quality glass and image processing, I swear some are better than you'd see in person!

[–] anon6789@lemmy.world 4 points 11 hours ago

They're everywhere but Antarctica! From the Arctic to the Sahara to the Amazon, there's an exciting variety of owls to be found.

[–] anon6789@lemmy.world 2 points 11 hours ago

Owls can make any look trendy!

 

From Bamby Randhawa

Rock Eagle Owl - Hooting brings out the white feathers on the throat.

Location: Bhigwan grasslands

State: Maharashtra, India

Date: 7 June 2025

Also called the Indian or Bengal Eagle Owl, some consider this a subspecies of the Eurasian Eagle Owl. I calling it stunning!

 

From Jennil Modar

Majestic and sharp-eyed, this hawk owl embodies the art of precision as it dives into the dance of the midday hunt. Nature's silent hunter at its finest.

Not many photos of these guys outside of winter. I really like them!

 

From Blackland Prairie Raptor Center

Nose Job? This Eastern Screech Owl came to our Rehab Center with some blood above its cere. The cere is a waxy fleshy covering above a bird's beak just below the eyes, where the nostrils (nares) are located. The owl is patiently sitting while our staff cleans the cere.

 

From John Clayton

Meet the Karthala Scops Owl !

The Karthala scops owl (Otus pauliani), also known as Grand Comoro scops owl or Comoro scops owl, is a small, scops owl endemic to the island of Grande Comore in the Comoro Islands.

The Karthala scops owl lacks ear tufts and come in two colour forms, a light morph and a dark morph. The light morph is dark greyish brown on the upperparts with fine barring and pale spots along the scapulars. The underparts are reddish buff with a dense pattern of fine barring on the flight feathers and tail. The dark morph is overall dark chocolate brown but no specimen of a dark morph individual has been taken. It measures approximately 20 cm (7.9 in) in length and the wingspan is 45 cm (18 in).

A whistled "toot" which is given repeatedly with one second intervals.

Endemic to the island of Grande Comore, the Karthala scops owl is found only on Mount Karthala, an active volcano. Here it inhabits the montane forest, some secondary growth and the tree heath above the forest.

Nocturnal and very territorial, the Karthala scops owl will approach an imitation of its call, otherwise almost unknown. It has relatively weak talons so probably feeds on insects and other invertebrates. It is though to nest in tree cavities.

It has an estimated population of 2,000. It is classified as endangered due to it being restricted to such a small area, which is being rapidly deforested.

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Retro Stache! (infosec.pub)
submitted 1 day ago* (last edited 1 day ago) by anon6789@lemmy.world to c/superbowl@lemmy.world
 

From Keith Bannister

Long eared owl chick, taken about three weeks ago, fully fledged now and hunting for themselves, in their own territory.

 

From Raven Ridge Wildlife Center

We are profoundly inspired by the selfless actions of individuals who step up to help animals in need. Recently, on May 6th, we received a call from Jim, who witnessed a great horned owl stranded in the middle of a busy road. It was heartbreaking to see cars speeding by while the owl remained helpless and endangered. Alarmed by this alarming scene, Jim immediately turned his car around and activated his hazard lights to offer assistance. Tragically, another vehicle maneuvered around him and carelessly drove over the owl, leaving Jim horrified at the thought of this magnificent creature being harmed.

Driven by compassion and quick thinking, Jim reached for a towel in his car. Recognizing the urgency of the situation and knowing there was no safe way to contain the owl, he gently placed it in his trunk, creating a dark and quiet refuge that ensured the safety of both the owl and himself. The very next morning, he made his way to our facility, with the owl peacefully secured in his trunk.

We are overjoyed to share the remarkable release of this owl, which would have certainly faced a grim fate without Jim and his wife's decisive action. It was a privilege to have them both present for the release back home, far from the dangers of the road. Their extraordinary kindness not only gave this beautiful owl a second chance at life but also serves as a powerful reminder of how a single act of compassion can make a world of difference.

 

From Blackland Prairie Raptor Center

Pure bliss (or a desperate attempt to look like a tree). A tiny Eastern Screech Owl in our Rehab Clinic.

I'm sure it's more the attempt to pretend it's anywhere else, but it does give the appearance of extreme cuteness. It's important to learn about animals and how they react to stress so we can be good friends to them and not be unwittingly terrorizing them the whole time.

The wild ones almost always act like we're the most annoying things ever, but I guess that's the price of their free medical care! 😉

 

From Christopher Spooner

I am very fortunate indeed, to have a long-lasting great rapport with this female Rufous Owl.

For over three years she has tolerated me being very close, and at times has flown down to perch near to where I am standing - which she did again last night - and once landed down at my feet where she picked up something (dropped food, perhaps?) before flying back up into the tree.

Such a special feeling when wildlife is so accepting of me on an ongoing basis!

A couple of weeks ago when I saw her for the first time in quite a few months, she appeared a little nervous. I spoke to her, and she immediately looked my way and calmed down - did she recognise my voice from last year's encounters?

Here are some shots from last night after she had fed the chick and flown down to a bare branch near to where I was.

I had not seen her land and perch, but she called a few times which alerted me to where she was, and then she quietened down when I went to her and spoke to her. A wonderful 10 minute encounter before she flew off to hunt.

 

From Savannah Rose

Ups and downs. Great grey owl chicks leave the nest before they can fly, so as a result they have an interesting relationship with gravity. This time, the poor thing plummeted to the forest floor.

 

From Pete Hanna / Jesse Winston

Nice shot of her back showing lovely markings.

 

From Stan Halen

Now you see me... Now you don't. The camouflage of owls, in this case a western screech owl, is incredible. I'm sure we walked by this lovely lady (90% sure?) more than once until we got a side view. May 2025

 

The environmental center will be among the first in the country to care for a Northern hawk owlet in a conservation education environment, providing a rare opportunity for the whole community.

From PSU.edu

A tiny owl with a big mission has landed at Shaver’s Creek Environmental Center. Pip, a Northern hawk owl chick, is helping the center break new ground as one of the first in the country to raise this rare species in a conservation education environment.

The arrival marks a new chapter not only for Shaver’s Creek, which is a service of Penn State Outreach, but for the entire community that will learn and grow alongside Pip.

Pip is one of a brood of northern hawk owls hatched this spring as part of a first-of-its-kind conservation education effort in Washington state. Pip recently traveled across the country to join the Klingsberg Aviary at Shaver’s Creek.

Shaver’s Creek Wildlife Program Director Paige Sutherland said Pip is a fitting name for this owlet who will bring many new experiences to the environmental center.

“Pipping is the first stage of hatching out of an egg, and this little one is the first of this species bred for conservation education in the U.S., the first time the center has had this species, the first time we've acquired a bird bred for education and the first time we've raised a chick from this young of an age,” Sutherland said. “Pip will help hatch a new stage of our program’s development and help us grow to new heights. As the bird grows and develops, so will our program.”

Northern hawk owls are unique because they look like owls, but act like hawks, said Klingsberg Aviary Coordinator Joe Whitehead. While Pip is currently small with fluffy downy feathers, Northern hawk owls grow to have a distinct owl look with an oval body, yellow eyes and round face. Whereas most owls are nocturnal and hunt at night, Northern hawk owls are typically active during the day, often seen perched on trees hunting like hawks.

The species is native to the boreal forests of North America from Alaska to Canada and parts of the Northern continuous United States but is seldom seen by birders in the area.

The opportunity to acquire this rare owl is a testament to the innovative work that Sutherland and her team have done with raptor training based on positive reinforcement that provides the birds with empowerment, flexibility and choice.

This approach has proven to be successful with the owls they have worked with over the years, providing an example to other nature centers that work with owls.

“One of the big gaps in knowledge is that a lot of the work has been historically focused on hawks,” Whitehead said "Animal training has come a long way but there is still a lot to learn, especially with owls. But we have done well with our owls. They have done well in our system at our facility."

Now, with a human-imprinted owl raised in a conservation education environment from infancy, Whitehead said he believes it will be beneficial to compare the work done with Pip to the other owls who arrived at the center with different backgrounds.

“As far as the field is concerned, this puts us in a really interesting place to research in the future, because now we have this hawk owl that is a very purposely raised as an imprint and a species that our industry has the least amount of knowledge on,” Whitehead said. “We have this spectrum of all the ways you can work with an owl. It puts us in a position to continue to help other centers because we can compare, share and strengthen each bird’s message.”

It's the center’s strong reputation in the conservation education that led Joel Knutson to entrust Shaver’s Creek with one of the six Northern hawk owl chicks that hatched in his care this year.

“We had heard about the facility's great reputation, and we had a personal recommendation from a mutual connection who said they felt it would be a great fit. Then we saw some videos of one of the birds that Joe was working with, and it was very apparent that he really knew what he was doing,” Knutson said. “That spoke a lot to the level of care and precision that would be involved with the husbandry of this bird.”

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