10,000 Birds

MARCH 11, 2024

This laughingthrush is a cooperative breeder – nestlings are fed by all members of a group, often 6-12 (not just 2 as in Wham!): “A female may share a nest with another, and 3 or more adults may take turns incubating the eggs and feeding the chicks.” ” ( source ).

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Burma India Birds Indonesia 188

10,000 Birds

MARCH 6, 2023

Apparently , they use the presence of their own eggs as a cue for recognizing parasitic eggs – so without the presence of their own eggs as a template they fail to recognize a parasitic egg. Some individuals even rejected their own eggs when they were in the minority.

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Eggs China Birds Mammals 163

10,000 Birds

DECEMBER 8, 2022

Fortunately for the buntings, they seem to detect most cuckoo eggs smuggled in (75% in one study). A study found that for Plain Prinia , egg characteristics in a mainland China location with many cuckoos make it much easier to spot cuckoo eggs than in a Taiwan location with few cuckoos ( source ). Better safe than sorry.

Birds 196

Birds Eggs Bangladesh China 196

10,000 Birds

NOVEMBER 2, 2021

The “Owls and Albatrosses” chapter, for example, begins with Doug’s personal experiences observing of the nesting strategies of Malleefowl and a Moluccan Megapode, Australasian “chickens who lay their eggs in unusual ways and do not parent. This is a book that requires attention.

Science 203

Science Albatross Research Birds 203

10,000 Birds

FEBRUARY 6, 2024

As we know from the French documentary La Marche de l’Empereur ( March of the Penguins) , the females skedaddle from the breeding colony once she produces an egg, leaving the egg to be incubated by the males, who fast for 120 days while keeping the egg in a flap of their feet. (I

Penguins 151

Penguins Seals Leopards Research 151

10,000 Birds

FEBRUARY 23, 2019

A discarded pigeon’s egg reminded me that spring is just around the corner and that nest boxes should be readied in anticipation. Wrens for example might use anything that will support their nest. What’s this? Where did winter go? You don’t have to use shop-built boxes.

Eggs 174

Eggs Suffering Cats Protection 174

10,000 Birds

JULY 21, 2022

Here are a few examples: The Ostrich Communal Nesting System. Studies on improving ostrich egg hatchability. Also, I learned that in the US , ostrich eggs are priced at $40-$75. Each fresh egg weighs 4 pounds and is the equivalent of 24 chicken eggs. . Medicinal and commercial uses of ostrich products in Tanzania.

Ostriches 147

Ostriches Parrots Birds Eggs 147

10,000 Birds

JUNE 2, 2015

And of eggs and nests and birds on nests. Into the Nest , as the title says, is about the courting, mating, egg-laying, nesting, and parenting behavior of “familiar birds”. Cedar Waxwings exchange berries, carry nesting material, eggs. Egg biology, from Part I. Oops, the curmudgeon in me slipped.) Peregrine Falcon nests.

Eggs 263

Eggs Family 2006 New York 263

10,000 Birds

JULY 25, 2022

For example , in one study, it was found that more than 80 percent of the fledgling Australian Magpies born in a territory one year were sired by males from outside its borders. When these birds breed, this can lead to highly cringeworthy announcements, for example from Adelaide Zoo : “We have egg-citing news!”

Birds 216

Birds Australia Ducks Mountain Goats 216

10,000 Birds

AUGUST 1, 2022

I have written about the interesting sex life of these jacanas a few times already (short version: female mates with male, lays a bunch of eggs for him to incubate and raise the chicks, leaves him, finds another male, repeat). Apparently, after a male first mates with a female, he throws out the first one or two eggs she lays in their nest.

Birds 147

Birds China Eggs Breeding 147

10,000 Birds

NOVEMBER 3, 2020

Penguins are cartoons, emoticons, animated films, children’s books (though owls really take first place here), sports teams, a book publisher, and a Batman villain (a rare example of penguin negativity, though Burgess Meredith did bring an endearing attitude to his 1960’s TV portrayal).

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Penguins Georgia New Zealand Albatross 277

10,000 Birds

AUGUST 7, 2023

Indeed, most cuckoo eggs are accepted by the babax ( source ), although a small proportion of hosts reject cuckoo eggs and often boast about this capability when having a few too many drinks. Some Chinese Babax waste part of their lives feeding chicks of Large Hawk Cuckoos, which parasitize the babax species.

Hamburgers 197

Hamburgers Birds Science China 197

10,000 Birds

NOVEMBER 5, 2019

The lengthy Introduction gives both a personal history and a global history of birds and art, including brief profiles of John James Audubon and the far lesser known Genevieve Estelle Jones, who conceived of a book eventually called Illustrations of the Nests and Eggs of Birds of Ohio in the late 19th century. Cleaning brushes, for example.

Birds 142

Birds Eggs Laws Woodpeckers 142

10,000 Birds

SEPTEMBER 15, 2021

There is something about a mature rainforest, for example, that cannot be replicated by any human. Having successfully claimed ownership of the nest, the Piratic Flycatchers move in, lay and incubate their eggs, and ultimately raise their young in the pirated nest. When out birding, I prefer completely wild habitat. Piratic Flycatcher.

Trinidad 202

Trinidad Abandon Abandoning Abandonment 202

10,000 Birds

FEBRUARY 9, 2021

.” His classes attracted diverse groups of students, often with little scientific background: “Students have to first pass biology, but most come in knowing next to nothing about birds except that they can fly, that they have feathers, and that they lay eggs.”. Examples here , here , and here.)

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2018 Agenda Science Eggs 262

10,000 Birds

NOVEMBER 17, 2018

There was no breeding behaviour evident amongst the thrushes on any of the 4 sightings over a 4-week spread from the last week of August to the last week of September, though other species were gearing up for the season, with a Southern Lapwing seen on eggs. An individual that can easily be identified could help to provide a few answers.

Eggs 113

Eggs Breeding Species Birds 113

10,000 Birds

APRIL 14, 2022

both newly hatched and well-advanced young, or fresh eggs laid alongside brood of advanced nestlings), and suspected instance of three adults building a nest” This is how the Roman empire ended as well, I believe.

Birds 185

Birds Eggs Woodpeckers Species 185

10,000 Birds

MARCH 1, 2017

The smart-looking example in the photo above is by Michael Catanzariti, through Wikimedia Commons.). Scientists ponder the feasibility of genetically engineering chickens to lay the eggs of endangered bird species. So crazy it just might work?

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Penguins Argentina France Stray 100

10,000 Birds

JUNE 1, 2021

These run the range from birds like Barnacle Goose and Little Egret, which are rare but do show up in North America every few years (actually, lately it’s been every year) to birds whose sightings in North America are so few that they’re legendary–Western Reef-Heron and Corn Crake are two examples. This is not unusual.

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North America America Birds California Condor 278

10,000 Birds

FEBRUARY 6, 2020

His first surmise seems like a good one – that the feathers are meant to hide the eggs from other female swallows seeking to parasitize the nest, by disrupting the parasite’s timing (if eggs are present, the parasite would know that the nesting mother is ready to incubate – that is, incubate not only her own eggs, but the parasite’s, as well).

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Eggs Emotional Bats 2014 130

10,000 Birds

FEBRUARY 1, 2022

Birders are always happy to see a turtle or tortoise, and there are times of the year when my social media feeds are sprinkled with photos of turtles beings removed from roads or crawling to land to lay eggs. It was fun to see both Yertle the Turtle and Teenage Mutant Ninja Turtles cited as examples of cultural imagery.

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Turtles Tortoises Family Terrapins 188

10,000 Birds

JULY 7, 2022

For example, the Brown Honeyeater visits more than 300 different flowers. While females hatch from larger eggs and are initially heavier than their brothers, after ten days, the male chicks weigh almost 50% more than their sisters, as they receive a higher quantity and quality of prey from their parents ( source ). ” ( source ).

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Birds Australia Parrots Memphis 147

10,000 Birds

OCTOBER 9, 2023

For example , fallen figs do not seem to mind catching a ride with Oriental Pied Hornbills. There are some reports of the species having bred in captivity, for example, in a British Wild Life Park. To avoid quarrels about different education styles, each adult attends a separate chick after fledging (source: HBW).

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Rhinoceros Singapore Transported Hunting 124

10,000 Birds

JULY 4, 2023

From Hiro, we learn how Northern Pygmy Owls are “rule breakers,” not incubating eggs till all are hatched and then raising owlets that mature at the same rate even though the eggs were laid asynchronously (as most owl eggs are). It’s a lot of work. It sounds like fun, but I can’t find it anywhere.

Owls 199

Owls Science Barn Owls Penguins 199

10,000 Birds

APRIL 4, 2022

Once the egg has been laid, the female is chased away and the males hatch it.” On the other hand, given China’s low birth rate, they might serve as an example for the future.

Birds 196

Birds China Pythons Breeding 196

10,000 Birds

SEPTEMBER 27, 2015

Last weekend we went by vehicle to check on the Pied Oystercatchers that breed along that stretch of beach and there has been continued egg loss over the past few weeks. They are persistent at laying eggs and despite the loss of all the eggs from our last visit there were five new eggs. Pied Oystercatcher shading an egg.

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Eggs Birds Investigation Bears 140

10,000 Birds

OCTOBER 19, 2015

Kind of a dull example of the species but it was still a Lark Sparrow ! I went out into Big Egg Marsh hoping for a Nelson’s Sparrow and found one, though this shot is of a Saltmarsh Sparrow. I went out into Big Egg Marsh hoping for a Nelson’s Sparrow and found one, though this shot is of a Saltmarsh Sparrow.

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New York City New York Sparrows Eggs 152

10,000 Birds

JULY 15, 2012

There are thousands of shorebirds that visit Broome each year and the majority of them are now in the northern hemisphere hopefully sitting on eggs. Not all of our shorebird species migrate and those that reside here are also currently sitting on eggs, or thinking about laying eggs in the upcoming weeks.

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Eggs Raised Birds Breeding 204

10,000 Birds

SEPTEMBER 6, 2022

They may be about bird eggs ( The Most Perfect Thing: The Inside (and Outside) of a Bird’s Egg , 2016), or a 17th-century ornithologist ( Virtuoso by Nature: The Scientific Worlds of Francis Willughby, 2016), or How Bullfinches learn songs from humans ( The Wisdom of Birds: An Illustrated History of Ornithology.

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Dissection Birds Research Europe 208

10,000 Birds

JUNE 26, 2018

The Zoo episode focuses on two Pink Pigeon couples: The Stud and Serendipity, a male and female that the zoo people hope will mate and produce a viable egg, and Thelma and Louise, a same-sex pair-bonded couple who the zoo people hope will incubate the egg and nurture the chick. Passenger Pigeons, for example. Because, Ms.

Mauritius 101

Mauritius Stud Zoos Eggs 101

10,000 Birds

JANUARY 19, 2012

You’re a mammal, so you might be tempted to use yourself as an example mammal, but humans are actually kind of bad examples of mammals, so perhaps we’ll use a well studied hoofed animal instead. Think about the difference between birds and mammals. as both use internal fertilization. All the nurturing has to come from mom.

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Mammals Eggs Abandon Abandoning 162

10,000 Birds

OCTOBER 4, 2021

Hints of potential warming in the HBW species description: “Date of first egg-laying on Honshu now 7 days earlier than it was 25 years ago” There are also quite a few Cuckoos. For example, the main article states that “At Lac de Grand Lieu, W France, birds commute 2–38 km between colony and feeding territories.”

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Birds LACS France Japan 217

10,000 Birds

DECEMBER 18, 2014

For example, in the Delaware Bay, warming coastal waters can cause horseshoe crabs to lay their eggs earlier than normal; conversely, more intense and frequent coastal storms can cause late spawning. In both cases, knots, which feed on the crabs’ eggs, can miss their peak refueling opportunity.

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Endangered Species Protection Delaware Species 160

10,000 Birds

JULY 17, 2011

This is the time of year when the Pied Oystercatchers breed and already three of the sixteen pairs along this stretch of beach have successfully laid eggs. The first pair to lay eggs this season have only a few more days of sitting and then they will be very busy guarding their chicks from predators.

Eggs 172

Eggs Turtles Australia Breeding 172

10,000 Birds

JULY 18, 2022

According to the HBW, when breeding, male birds do most of the incubation and parenting while females often leave the nest up to one week before the eggs hatch. According to Couzens, after laying the eggs, females sometimes immediately abandon their first mate and pair up with another male. But maybe that is actually a good thing.

Birds 162

Birds South Korea Japan Abandon 162

10,000 Birds

APRIL 18, 2021

Here’s a sad example of where logic failed. “Apparently she found a fallen American Robin ‘s egg,” she wrote, “and kept it in there for two weeks! “Five hatchling House Sparrows in a Happy Meal box,” said Johanna Walton, also in Connecticut. Obviously, there’s no air in there.” She even slept with it.”

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Transported Wildlife Rehabilitation Bats Opossums 278

10,000 Birds

JULY 26, 2016

For example, it is a big, bulky bird, with a bright yellow eye and a “ patch of bare blue skin behind the eye.” When searching for a Venezuelan Troupial, look for woodland areas or open savannahs, where they search for insects, fruits, and eggs. It was introduced to Puerto Rico and other island nations, and now flourishes.

Venezuela 101

Venezuela Puerto Rico Colombia Trinidad 101