Unlike herons, anhingas spear their prey but this means they can’t open their beaks to swallow. This video shows what they do to solve the problem.
Anhingas go by many names. Some people call them snake birds. Others call them piano birds. Regardless of the chosen label, anhingas are pretty unique little dinosaurs. They catch their prey underwater by spearing it and when they surface, they have to somehow unspear it. pic.twitter.com/JamqyJLoBE
— Mark Smith Photography (@marktakesphoto) March 23, 2024
p.s. There’s a bird in Africa that looks like an anhinga (Anhinga anhinga). Closely related, the Anhinga rufa is the “African darter.”
A decades-old problem became acute his winter. After high winds and a historic high tide damaged 20+ beachfront homes in January at Salisbury Beach, Massachusetts, the residents took up a collection to build a protective dune. It took five weeks, 14,000 tons of sand and more than half a million dollars to build the dune to protect the homes. Three days later it was gone.
Completion of the dune project in early March brought high hopes to Salisbury Beach.
The temporary dune did it’s job — no homes were damaged in March — but the idea of spending half million dollars after every storm is out of the question. So the town is regrouping and weighing options.
You might be wondering: Why don’t they just build a seawall?
Seawalls just move the problem a few hundred feet down the beach so they are generally not allowed in Massachusetts (see special exception in yellow).
Also, a seawall will remove the beach entirely as shown in this diagram. If Salisbury Beach builds a seawall they will have no beach at all, just a wall with a sheer drop to the ocean. Understandably, the homeowners want a beach.
Pied-billed grebe at Duck Hollow, 21 and 24 March 2024 (photo by Charity Kheshgi)
25 March 2024
Yesterday at Duck Hollow it was brilliantly sunny and *cold.* Though the temperature was 27°F the light wind made it feel like 17°F. Brrrr!
Charity Kheshgi and I scouted on Thursday and found a pied-billed grebe near shore who was still present in the same zone on Sunday. Alas, the seven horned grebes we saw on Thursday were long gone.
Despite the cold and (shall I say “stabbing”?) sunlight we had a good time and saw 32 species. Our checklist is here https://ebird.org/checklist/S165818025 and printed below.
Duck Hollow outing, 24 March 2024 (photo by Kate St. John)
My next outing will be sooner than usual, just three weeks from now in Schenley Park on Sunday 14 April at 8:30am. Stay tuned.
Duck Hollow, Allegheny, Pennsylvania, US Mar 24, 2024 8:30 AM – 10:00 AM
Canada Goose (Branta canadensis) 11 Wood Duck (Aix sponsa) 1 bird. Only one person saw it. Mallard (Anas platyrhynchos) 4 Hooded Merganser (Lophodytes cucullatus) 2 A very distant pair. The male’s crest was raised and he was flinging back his head in courtship display Common Merganser (Mergus merganser) 1 Pied-billed Grebe (Podilymbus podiceps) 1 Mourning Dove (Zenaida macroura) 4 Killdeer (Charadrius vociferus) 1 Herring Gull (Larus argentatus) 2 Great Blue Heron (Ardea herodias) 1 Turkey Vulture (Cathartes aura) 8 Cooper’s Hawk (Accipiter cooperii) 1 Belted Kingfisher (Megaceryle alcyon) 1 Downy Woodpecker (Dryobates pubescens) 2 Northern Flicker (Colaptes auratus) 2 Eastern Phoebe (Sayornis phoebe) 1 Blue Jay (Cyanocitta cristata) 2 Carolina Chickadee (Poecile carolinensis) 3 Tufted Titmouse (Baeolophus bicolor) 2 Golden-crowned Kinglet (Regulus satrapa) 2 Carolina Wren (Thryothorus ludovicianus) 5 Northern Mockingbird (Mimus polyglottos) 2 American Robin (Turdus migratorius) 7 House Finch (Haemorhous mexicanus) 4 American Goldfinch (Spinus tristis) 7 Dark-eyed Junco (Junco hyemalis) 1 White-throated Sparrow (Zonotrichia albicollis) 1 Song Sparrow (Melospiza melodia) 7 Red-winged Blackbird (Agelaius phoeniceus) 17 Brown-headed Cowbird (Molothrus ater) 3 Common Grackle (Quiscalus quiscula) 1 Northern Cardinal (Cardinalis cardinalis) 16
You would think that mother birds would be the protectors but in the social structure of African jacanas (Actophilornis africanus) the females can have multiple mates and never settle down, so it’s up to the fathers to build the nest, hatch the eggs and protect their kids.
During the Ice Age, the Pleistocene 2.58 million to 11,700 years ago, there was a lake 600 feet deep in Death Valley where Badwater Basin stands today. Named Lake Manly(*) by geologists, it disappeared 10,000 years ago.
Badwater Basin is 282 feet below sea level so any water that reaches it can only evaporate yet the evaporation rate is so high that the basin is a salt pan. Occasionally — decades apart — there’s enough rain to make a shallow lake.
In the past six months California has had two unusual rain events. On 20 August 2023 Hurricane Hilary dumped 2.2 inches and caused Lake Manly to re-form in place. (The deluge also closed the Death Valley National Park for two months.) Amazingly the lake persisted through the winter.
And then the Atmospheric River event of 4-7 February dumped 1.5 more inches of rain. Lake Manly grew to a depth of 1 to 2 feet so in mid-February the National Park Service opened it to kayaking.
The last time the lake formed, in 2005, it lasted only about a week. This time NPS estimates it’ll be gone — or at least too shallow for kayaks — by April.
So if you want to kayak in Death Valley, get out there now before Badwater Basin returns to normal.
Sun pillar at sunrise, 11 January 2024, Pittsburgh (photo by Kate St. John)
13 January 2024
This week featured spectacular sun effects and high water.
On 11 January I captured this photo of a sun pillar at sunrise while Dave DiCello got an even better shot from the West End Bridge.
Another view from today's vibrant sunrise, this time from the West End Bridge in #Pittsburgh. Not only was the color still so vibrant by the time I got there, but there was a sun pillar that was reflecting in the river as well. What a great morning to run around the city. pic.twitter.com/vrjfuAV91Q
Friday’s sunrise was spectacular in a different way.
Spectacular sunrise on 12 January 2024, Pittsburgh (photo by Kate St. John)
Tuesday 9 January produced the classic Gleam at Sunset in which a day of thick cloud cover ended with a gap on the western horizon and 30 minutes of sun. Here’s what the gap looked like just after sunset from the roof deck of my building.
The Gleam at Sunset looking west, 9 January 2024, Pittsburgh (photo by Kate St. John)
Twenty minutes earlier I had viewed the gleam from below when it lit the tops of trees and buildings … like this.
The Gleam at Sunset lights a treetop, 9 January 2024, Pittsburgh (photo by Kate St. John)
Meanwhile we’re only 13 days into January and have already had 2.24 inches of precipitation — 1.06 inches above normal for the month. All that water ends up in the rivers so it’s no wonder that the Monongahela River was running high at Duck Hollow on 11 January.
Some trees are up to their ankles in water along the Monongahela River at Duck Hollow, 11 January 2024 (photo by Kate St. John)High water on the Monongahela River at Duck Hollow, 11 January 2024 (photo by Kate St. John)
Watching gulls at the Point, Pittsburgh, PA, 31 Jan 2015 (photo by Tim Vechter)
11 January 2024
Only a few days ago I was lamenting that we weren’t having a snowy winter, neither snow nor snowy owls. Well, be careful what you ask for! A few days of bitter cold are coming to Pittsburgh next week. If Lake Erie freezes, arctic gulls will fly south to find open water on the rivers. The photo above shows some cold and happy birders looking at rare gulls at the Point in January 2015.
So what are the chances this will happen next week?
As of this morning, the forecasted low temperature for dawn on Wednesday 17 January is 9°F. This map for next Monday sure looks like we’re in a “polar vortex.” Cold, right?
But will it be cold long enough to freeze Lake Erie and send the gulls south? Probably not. The eastern Great Lakes ice map as of yesterday, 10 Jan 2024, shows nearly 100% open water (white).
There’s not even a hint of ice (blue) on most of Lake Erie and the Great Lakes ice-to-date graph for winter 2023-24 indicates that ice is at a near record low. There’s a lot of cooling off to do before the lakes will freeze.
So next week I’ll have to wear my Minnesota gear to go outdoors but it’s unlikely there will be any unusual birds out there. Will I want to go out in 9°F anyway? I’ll have to wait and see.
You don’t have to travel as far as the Maldives to see bioluminescent waves but it is not a common phenomena and few places are as reliable as this one.
Watering holes are places of abundant wildlife in Arizona’s Sonoran desert as captured on this trail cam in the borderlands. One of the night visitors is a ringtail (Bassariscus astutus), a member of the raccoon family, shown above. (There are two embedded videos below; please wait for them to refresh.)
Lots of other interesting critters visit this borderlands trail camera: coyote, coati, bear, gray fox, northern goshawk, ringtail, deer, Mexican spotted owl eating a bat, turkey vulture, Gould's turkey, and western spotted skunk, to name a few. https://t.co/KRYPVrxWd7pic.twitter.com/JKZ3FN29N6
When water crosses political boundaries animals cross, too, back and forth from Arizona to Mexico. But now the Border Wall makes most of that impossible.
Listen to Quitobaquito Springs flowing peacefully just feet from the U.S.-Mex border. This true desert oasis has provided life-giving water to endangered wildlife in the UNESCO International Biosphere Reserve spanning Arizona & Sonora, Mex, which is now severed by a border wall. pic.twitter.com/MWBjm0TeER
Lots of animals don’t sleep for long periods like we do but a new study has found a polar opposite in Antarctica (pun intended) where chinstrap penguins (Pygoscelis antarcticus) take 10,000 4-second naps each day during the breeding season. In this way they accrue 11 hours of daily sleep.
For us, the micronaps would be a form of sleep torture since we cannot enter restorative deep sleep in such a short time. But the chinstrap penguins do.
Brain waves showed the penguins experience slow wave (deep) sleep during those micro-naps. They nap while incubating or guarding their chicks and even while floating on the ocean.
So now I’m looking at group photos of chinstrap penguins and, sure enough, in every photo some of the adults are sleeping. They’re getting their beauty rest 4 seconds at a time.