Category Archives: Schenley Park

Owlet!

Great horned owl on nest in Schenley Park, 1 Feb 2025 (digiscoped photo by Kate St. John)

11 February 2025

Remember this great horned owl nesting in Schenley Park? According to eBirder Andy Georgeson, she’s been incubating since at least 8 January.

[Great horned owl] continuing – I have now observed this owl on the old red tail hawk nest for the last 3 weeks. … This morning the owl was mobbed by 2 Ravens and displayed a defensive posture while in the nest before the Ravens flew off.

eBird Checklist comment from Andy Georgeson, 29 Jan 2025, 7:30am

Last Sunday, 9 February, Dana Nesiti saw movement under her breast feathers and patiently waited until her owlet appeared. Can you see its little gray beak poking out under her white collar?

Great horned owl with chick, Schenley Park, 9 Feb 2025 (photo by Dana Nesiti)

Incubation for great-horned owls (Bubo virginianus) lasts 30-37 days, averaging 33 days. If this owlet hatched on Saturday 8 February, its egg was laid around 6 January. Andy Georgeson’s observation supports this timing, too.

Great horned owlets are in their nestling phase for 42 days. This one will probably walk off the nest (called “branching”) on or around 22 March.

We’re going to have 6 weeks of Superb Owlet(s)!


UPDATE at noon on 11 February: Charity Kheshgi and I visited Schenley Park this morning to see the owls, best viewed in the vicinity of the stone bench here. I was lucky to digiscope a photo of the chick.

Great horned owl with sleeping owlet (center of photo) and stored food (on left side of nest), Schenley Park, 11 Feb 2025 (photo by Kate St. John)

The owlet is the white fluff closest to his mother in the center of the photo. The other white stuff is the remains of a rabbit on top of the twigs at the left.

If you can’t discern the owlet above, here’s the same photo flipped so that the chick’s sleeping face is in the normal upright position. Ignore everything in this marked up photo except the area inside the yellow circle. Notice that the owlet’s white head, dark eye (closed), and beak are peeking out to the right of the nest twigs.

Marked up photo of owlet in great horned owl’s nest, 11 Feb 2025 (photo by Kate St. John)

Seen in Past Week: Gulls, Owls and Bonus Birds

Immature herring gull on ice shouts at his friends, Duck Hollow, 28 Jan 2025 (photo by Charity Kheshgi)

3 February 2025

In the past week I’ve been lucky to see gulls on ice, an owl on the nest, and three Bonus Birds.

Tiny icebergs were floating down the Monongahela River when Charity Kheshgi and I visited Duck Hollow on 28 January.

Ring-billed gulls on ice at Duck Hollow, 28 Jan 2025 (photo by Charity Kheshgi)

Ring-billed gulls outnumbered every other species. A few immature herring gulls made a ruckus in the middle of the river. And a Bonus Bird: A peregrine falcon flew over. I wonder who it is!

Peregrine falcon flyover, Duck Hollow, 28 Jan 2025 (photo by Charity Kheshgi)

On 1 February I visited Schenley golf course to take a photo of my shadow and decided to drive down Circuit Road on the way home. The sun was so bright that it illuminated the great horned owl’s nest under the Panther Hollow Bridge. From the road I digiscoped a photo of the female and cropped it for a closer look.

Digiscoped photo of nesting great horned owl at Schenley, 1 Feb 2025 (photo by Kate St. John)
Heavily cropped digiscoped photo of nesting great horned owl, 1 Feb 2025 (photo by Kate St. John)

Yesterday I went back with Charity Kheshgi to see the owls. The captions on her video and photos tell the story.

video of great horned owl on nest, Schenley, 2 Feb 2025, by Charity Kheshgi

We were able to see both the male on the left and the female on the nest from a trail on the same level as the nest (the “Lower Trail”).

Great horned owl pair male roosting (left), female on nest, 2 Feb 2025 (photo by Charity Kheshgi)

Below the bridge we couldn’t see the nest but the male was visible, roosting in the shadows.

Great horned owl male roosting near his mate, 2 Feb 2025 (photo by Charity Kheshgi)

And later, two Bonus Birds: A golden-crowned kinglet who flashed his crown, yellow and red …

Golden-crowned kinglet, Schenley Park, 2 Feb 2025 (photo by Charity Kheshgi)

… and a brown creeper

Brown creeper, Schenley Park, 2 Feb 2025 (photo by Charity Kheshgi)

Great Horned Owls Already on Eggs

Great horned owl on nest, Merritt Island, Florida, January 2011 (photo by Chuck Tague)

30 January 2025

Great horned owls (Bubo virginianus) are the first birds to nest in Pennsylvania each year(*). They start courting in late fall and become really intense in December when you often hear them hooting in the woods and suburbs.  By January or February they’ve chosen a nest site and the female lays her eggs.

Since great horned owls never build a nest they often take over an old red-tailed hawk nest and that’s what they did at this bridge in Oakland. Ankur and Wenting saw the pair last Sunday 26 January.

The female owl is the only one who incubates, so she’s on the nest in the photo. Look closely behind and above her and you will see her mate perched on a horizontal girder. He feeds her at night and roosts near her during the day.

According to eBirder Andy Georgeson, this female has been on the nest since around 8 January:

[Great horned owl] continuing – I have now observed this owl on the old red tail hawk nest for the last 3 weeks. … This morning the owl was mobbed by 2 Ravens and displayed a defensive posture while in the nest before the Ravens flew off.

eBird Checklist comment from Andy Georgeson, 29 Jan 2025, 7:30am

Look at old red-tailed hawk nests near you for some ear tufts sticking up. If you see them, don’t get too close!  You don’t want to tangle with Mama owl!

Great horned owl on nest in March 2020 (photo by Steve Gosser)

p.s. The nest pictured at top is an old osprey nest in Florida, claimed by a great horned owl.

(*)First to nest: Pigeons nest all year long in Pennsylvania. They never have an off season.

Seen This Week: Sun, Clouds, Acorns

Red oak acorns rained on us at Biddle’s, 4 Nov 2024 (photo by Kate St. John)

9 November 2024

It’s an abundant year for red oak acorns, also called a “big mast year.” The acorns pictured above rained on us while we sat outdoors at a coffee shop. Their parent tree shades the tables in summer but is not much fun this autumn.

In two days at Schenley Park: Sun through yellow trees on Tuesday. Overcast skies and russet oaks on Wednesday.

Sun through the trees at Schenley Park on Tuesday 5 Nov 2024 (photo by Kate St. John)
Overcast sky, russet oaks and leafless trees at Schenley Park on Wednesday 6 Nov 2024 (photo by Kate St. John)

I took a picture of a bird! An unusual, piebald pigeon.

Piebald pigeon from the side, 5 Nov 2024 (photo by Kate St. John)

The pattern extends to the back of its head.

Piebald pigeon from the back, 5 Nov 2024 (photo by Kate St. John)

In an August article, Grass Carpet in the Woods, I mentioned that “After Japanese stiltgrass goes to seed in early fall it dies and becomes a brown drape over the landscape in winter.” Well, here it is draping part of Frick Park near Wilford’s Pines.

Dead Japanese stiltgrass draping the landscape at Frick Park, 7 Nove 2024 (photo by Kate St. John)

Seen This Week: Autumn Colors

Fall color of pawpaw leaves, Schenley, 25 Oct 2024 (photo by Kate St. John)

26 October 2024

Fall color is so spectacular in Pittsburgh this week that many of us have been snapping pictures everywhere we go. Here are just a few of the colorful leaves and trees I’ve seen in town.

Pawpaw leaves are turning bright yellow in Schenley Park while Virginia creeper is red along the Three Rivers Heritage bike trail at Herrs Island.

Virginia creeper at Herrs Island back channel, 22 Oct 2024 (photo by Kate St. John)

Sunlight reflecting on the water made rippling lights in the trees on 22 October. It was so warm you can hear crickets.

Ripples in the trees, 22 Oct 2024 (video by Kate St. John)

Yesterday in Schenley Park the trees were yellow or red depending on species.

Scene on the Upper Trail, 25 Oct 2024 (photo by Kate St. John)
Scene on the Serpentine, 25 Oct 2024 (photo by Kate St. John)

Not to be outdone by autumn leaves, the sky turned orange at sunrise on Saturday.

Sunrise, 25 Oct 2024 (photo by Kate St. John)

Sunrise is after 7am now. We’ll “fix” that next weekend when we turn the clocks back.

Seen This Week: Late Flowers, Acorns, Crows

Insect on New York aster, Toms Run, 16 Oct 2024 (photo by Kate St. John)

19 October 2024

This week brought:

  • Fall colors and the first piles of fallen leaves
  • Late flowers and insects
  • “See Your Breath” cold mornings
  • The first juncos … and …
  • Several thousand crows in Oakland.

In photos, late asters attracted an insect at Toms Run and morning sun slanted through the trees in Schenley Park.

Fall colors and fallen leaves, Schenley Park, 18 Oct 2024 (photo by Kate St. John)

Many trees are changing color. The oaks aren’t there yet but they have dropped their acorns leaving empty acorn cups on the branches. It’s a big mast year for red oaks in Pittsburgh.

Red oak leaves and acorn cups, 13 October 2024 (photo by Kate St. John)

A rhododendron in Shadyside is confused. Is it spring?

Confused rhododendron blooming in Pittsburgh, 13 Oct 2024 (photo by Kate St. John)

This week crows were absent from Oakland during the day but arrived in huge flocks at dusk, staging on rooftops before flying to the roost. I fumbled to photograph them on the RAND Building last Sunday. This is only a fraction of the flock that flew away.

Crows make a stop on the RAND building before sunset, 13 Oct 2024 (photo by Kate St. John)

Obviously they’ve been roosting on Pitt’s campus. I found evidence below trees at the Pitt Panther statue. The Crows Slept Here Last Night.

Evidence at Pitt that The Crows Slept Here Last Night, 17 October 2024 (photo by Kate St. John)

More Weeds That Deer Don’t Eat

Sweet wormwood (Artemisia annua) in Schenley Park, 30 August 2024 (photo by Kate St. John)

4 September 2024

Last weekend I noticed this group of tall plants in Schenley Park with a distinctly Christmas tree shape. They are certainly weeds and are thriving in an area where deer have eaten all the non-poisonous native plants. But they haven’t eaten these.

I took a closeup of the leaves and asked Picture This to identify it: Sweet wormwood (Artemisia annua), native to temperate Asia.

Sweet wormwood (Artemisia annua) in Schenley Park, 25 Aug 2024 (photo by Kate St. John)

The Artemisia genus includes mugwort, wormwood, and sagebrush, all of which taste bitter and smell strong when their foliage or stems are crushed. Deer find this extremely unpalatable and can smell from far away that it’s too ugly to approach.

Deer in Frick Park, 17 Aug 2024 (photo by Kate St. John)

Some Artemisia plants also have medicinal properties. Sweet wormwood (A. annua) contains artemisinin which was discovered in 1972 and is used to treat malaria. Unfortunately the malarial parasite in Southeast Asia has developed artemisinin resistance so the drug can no longer be used alone to cure the disease.

Sweet wormwood’s close relative common mugwort (Artemisia vulgaris) also has a wide range of supposed pharmacological uses. These uses probably account for the plant’s presence in North America. The Pittsburgh area has plenty of it — another plant that deer don’t eat.

Mugwort (Artemisia vulgaris) at the Hays Eagle Watch site, June 2017 (photo by Kate St. John)

Sweet wormwood may be thriving this year because its mature plants are fairly drought resistant — and we are in a drought.

U.S. Drought Monitor map from UNL, 2024-08-27

Drought and deer have combined this summer to flood Pittsburgh with so many weeds.

Yesterday in Schenley Park

Schenley Park outing participants, 25 August 2024 (photo by Kate St. John)

26 August 2024

Yesterday morning 13 of us found 24 species of birds in Schenley Park plus flowering plants and insects.

Best Birds were the six+ ruby-throated hummingbirds (Archilochus colubris) sipping nectar at orange jewelweed (Impatiens capensis) along Phipps Run and at Panther Hollow Lake. Between sips they chased each other everywhere.

Orange jewelweed, favorite of hummingbirds, Schenley Park, 25 Aug 2024 (photo by Kate St. John)

So many hummingbirds was a happy sign after 7-8 years without big numbers in Schenley Park. Orange jewelweed is their favorite food on migration but it was eradicated 7-8 years ago by Schenley’s overabundant deer population. This year jewelweed patches thrive in inaccessible places at Phipps Run and among the cattails in Panther Hollow Lake. If you want to see hummingbirds, pause here and watch the jewelweed. Also check the wires above the lake.

Best insects were several red spotted purple butterflies flitting on the Lake Trail. Hailey Latona found one resting … but not for long. (Bug people: If I’ve misidentified this butterfly please correct me!)

Red spotted purple butterfly in Schenley Park, 25 Aug 2024 (video by Hailey Latona)

We also found a Honeybee Heaven near the railroad tracks. I had never noticed Japanese hop (Humulus japonicus) growing there but yesterday I could hear the flowers humming and saw it swarming with honeybees.

A species of hops at Schenley Park. Is it Japanese hops? 25 Aug 2024 (photo by Kate St. John)

By 10:30am it was getting hot but we found a chestnut-sided warbler so we paused to look harder. Alas, it was the only warbler species for the outing. Here’s our checklist.

Schenley Park, Allegheny, Pennsylvania, US Aug 25, 2024 8:30 AM – 11:00 AM

Canada Goose (Branta canadensis) X Maybe 40 on Flagstaff Hill; evidence at Panther Hollow lake
Mourning Dove (Zenaida macroura) 4
Chimney Swift (Chaetura pelagica) 2
Ruby-throated Hummingbird (Archilochus colubris) 6 — Lots of chasing
Downy Woodpecker (Dryobates pubescens) 2
Northern Flicker (Colaptes auratus) 2
Eastern Wood-Pewee (Contopus virens) 3 Heard
Red-eyed Vireo (Vireo olivaceus) 5
Blue Jay (Cyanocitta cristata) 6
Carolina Chickadee (Poecile carolinensis) 4
Tufted Titmouse (Baeolophus bicolor) 1 Heard
White-breasted Nuthatch (Sitta carolinensis) 2
Carolina Wren (Thryothorus ludovicianus) 4
Gray Catbird (Dumetella carolinensis) 3
Wood Thrush (Hylocichla mustelina) 1 Seen
American Robin (Turdus migratorius) 4
Cedar Waxwing (Bombycilla cedrorum) 9
House Finch (Haemorhous mexicanus) 4
American Goldfinch (Spinus tristis) 10
Song Sparrow (Melospiza melodia) 8
Baltimore Oriole (Icterus galbula) 2
Red-winged Blackbird (Agelaius phoeniceus) 3
Chestnut-sided Warbler (Setophaga pensylvanica) 2
Northern Cardinal (Cardinalis cardinalis) 2

View this checklist online at https://ebird.org/checklist/S192748114

Schenley Park Outing, August 25, 8:30am

Ironweed in bloom, 18 August 2024 (photo by Kate St. John)

19 August 2024

Late summer flowers are blooming, bugs are buzzing, and the first migrating birds are on the move.

Join me for a bird & nature walk in Schenley Park on Sunday, 25 August 2024, 8:30a – 10:30a. Meet at the Schenley Park Cafe and Visitor Center where Panther Hollow Road joins Schenley Drive. 

I know we’ll hear True Bugs whirring, see lots of flowers, and encounter Carolina wrens and goldfinches.

Carolina wren (photo by Christopher T)

Dress for the weather and wear comfortable walking shoes. Bring binoculars and field guides if you have them. If it’s hot be sure to bring water, sunscreen and a hat.

Visit my Events page before you come in case of changes or cancellations. The outing will be canceled if there’s lightning or heavy downpours.

Hope to see you there!

(photos by Christopher T and Kate St. John)

Seen Yesterday: Flowers and Oh, Deer

New York ironweed, Schenley Park, 19 July 2024 (photo by Kate St. John)

20 July 2024

Yesterday was my first opportunity to visit Schenley Park in more than a week.

  • Deep purple flowers on New York ironweed (Veronia noveboracensis)
  • Feverfew (Tanacetum parthenium) in bloom, a non-native plant from Eurasia.
  • Eastern bottlebrush grass (Elymus hystrix) with tiny spider threads.
  • Pavement glowing in the sun? No, pond scum on Panther Hollow Lake.
  • Dead adult spotted lanternfly nose-down with legs flexed open. Shadyside, 18 July.
  • Oh deer … Details near their photos.
Feverfew, Schenley Park, 19 July 2024 (photo by Kate St. John)
Eastern bottlebrush grass with tiny spider webs, Schenley Park, 19 July 2024 (photo by Kate St. John)
The surface of Panther Hollow Lake, Schenley Park 19 July 2024 (photo by Kate St. John)

I took a brief walk in my neighborhood on Thursday 18 July and found a dead adult spotted lanternfly, my first this year but I was out of town. It is nose-down to the pavement because its legs are flexed open.

Dead adult spotted lanternfly, Shadyside in Pittsburgh, 18 July 2024 (photo by Kate St. John)

Oh deer. Yesterday I saw four deer in Schenley Park; three in this family. The two spotted fawns appear to be a month younger than this year’s cohort that were born in May. If so, it was because their mother bred later than the rest of the herd, perhaps because she was a fawn herself last year.

One-year-old mother (probably) with two spotted fawns, Schenley Park, 19 July 2024 (photo by Kate St. John)

In the photo above, notice how little food there is on the ground. Without much to eat, deer in Schenley Park browse on foods they don’t like, such as the Japanese knotweed below.

Japanese knotweed browsed by deer, Schenley Park, 28 June 2024 (photo by Kate St. John)

Neighborhood gardens have a lot more food, so guess where the deer go. Last month I saw two in a garden with plants up to their shoulders. Not for long, though. As I watched one of them opened its mouth to take a large bite.

Deer eating in a garden on Ellsworth Ave, Pittsburgh, 17 June 2024 (photo by Kate St. John)