10,000 Birds

JULY 18, 2012

Starvation and predators make it hard to grow up, and birds have evolved a lot of strategies to give (at least some of) their chicks the best chance in life. One strategy that varies among birds (and other animals) is the number of offspring. Seabirds are one group of birds that go for the latter strategy.

Eggs 175

Eggs Puffins Breeding Albatross 175

10,000 Birds

NOVEMBER 23, 2014

Of the sixteen pairs of Pied Oystercatchers between Gantheaume Point and Willie Creek on the south side, which is a length of breeding territories covering 23 kilometres-just over 14 miles-only one chick fledges most years. There is egg predation, chick loss and sometimes possibly just some “bad parenting”!

Eggs 165

Eggs Raised Breeding Family 165

10,000 Birds

OCTOBER 2, 2011

We are into the second attempt at breeding for this season in Broome for Pied Oystercatchers. The first eggs are laid during the first week of July each year and if these eggs fail to hatch or the chicks are lost they will lay further eggs within a few weeks. Nest site with 3 eggs-one white!

2002 169

2002 Feral Cats Eggs 2007 169

10,000 Birds

FEBRUARY 29, 2012

Within a group, 1–7 male co-breeders compete for matings with 1–3 joint-nesting females who lay their eggs in the same nest cavity. Groups may also contain up to 10 male and female non-breeding helpers, usually offspring of the group produced in prior years 1.

Woodpeckers 196

Woodpeckers Breeders North America Groups 196

10,000 Birds

NOVEMBER 5, 2015

The highly specialized foraging strategy of flamingos makes them vulnerable to the effect of subtle changes in habitat quality. Egg harvesting to sell as food was intensive then, with thousands taken annually from the breeding colonies in Chile. Egg collection for local consumption still continues at lower scale.

Chile 156

Chile Endangered Species Eggs Argentina 156

10,000 Birds

AUGUST 23, 2015

Since discovering our first Pied Oystercatcher nest on Cable Beach in July 2000 we have observed the breeding of these local shorebirds along the coast between Gantheaume Point in the south and Willie Creek in the north, which is a distance of 23 kilometres.

Feral Cats 162

Feral Cats Eggs Feral Cats 162

10,000 Birds

NOVEMBER 3, 2020

The goal of Around the World For Penguins is simple: Describe the 18 species of penguin and their breeding grounds “from the perspective of a traveller.” Plantema gives highly detailed information about the weather, terrain, ownership of and access to the islands and coasts where penguins breed.

Penguins 279

Penguins Georgia Albatross New Zealand 279

10,000 Birds

JULY 2, 2024

A section in the Appendix, “Rare Shorebird Vagrants,” lists 16 additional species that do not show up annually in North America but who have more than ten records; the list notes where the species breed and where their vagrant paths have taken them within North American borders.

North America 264

North America America 2006 Delaware 264

10,000 Birds

OCTOBER 8, 2015

Brown Pelicans in non-breeding plumage. Both are the only Pelican in their non-overlapping breeding grounds. Peruvian Pelican in non-breeding plumage. Both pelicans have a very specialized foraging strategy that depends on abundant fish near the surface. Brown Pelican in Breeding Plumage.

Pelicans 157

Pelicans North America Peru Chile 157

10,000 Birds

FEBRUARY 20, 2023

In China, wherever there is one real tourist attraction (like the Great Wall), the local strategy seems to be to add some fake attractions – replicas of palaces or tombs, amusement parks, shopping centers – in order to maximize the income from tourists. But the starting point has to be a real attraction, not a fake one.

China 263

China Birds Pythons Eagles 263

10,000 Birds

AUGUST 9, 2023

All three species mentioned in this article breed on these islands, but the Piratic Flycatcher employs a truly piratic strategy: the breeding pair targets a recently built woven nest, often by a Yellow Oriole or Yellow-rumped Cacique but they have also been recorded targeting the nests of other flycatchers.

Trinidad 179

Trinidad Abandoning Abandonment Abandon 179

10,000 Birds

FEBRUARY 8, 2017

Breeding bird surveys appears to show the resplendent Allen’s Hummingbird (like Corey’s capture, above) in decline—but not in Southern California, where examination of eBird data reveals that members of a residential population appear to be faring much better than their migrating brethren. sports championships ).

Massachusetts 100

Massachusetts Eggs Falcons Bears 100

10,000 Birds

JULY 21, 2022

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 originated in Asia. Ostrich industry in Egypt.

Ostriches 147

Ostriches Parrots Eggs Africa 147

10,000 Birds

JUNE 7, 2012

A lovely looking and distinctive sounding bird (so they say, I sadly have not seen one…yet), the Kirtland’s Warbler can only be found during its breeding season in Jack Pine forests 5 to 20 years old in the northern Lower Peninsula of Michigan. It was the end of prescribed burns as part of the Kirtland’s Warbler recovery plan.

Michigan 257

Michigan Bahamas Endangered Species Research 257

10,000 Birds

MAY 25, 2023

During the breeding season, some Cattle Egrets look like teenage girls who have just discovered the existence of make-up, and consequently massively overdo it. While having somebody else raise your chicks like an attractive strategy to me, it is not without dangers. It is probably all downhill from here. What’s next?

Birds 130

Birds Cattle Raised Mammals 130

10,000 Birds

FEBRUARY 18, 2014

The vast majority of the 10,000+ living species of birds are passerines, and the vast majority of those have a similar system of breeding: Mom and dad bird make a nest and share parental responsibilities roughly equally, if not identically. It turns out that the two strategies may be related.

Breeders 239

Breeders Breeding Science Raised 239

10,000 Birds

APRIL 27, 2012

One of the more interesting aspects (in my opinion) of breeding in birds is their mating strategy. There are four main mating strategies in birds: 1) monogamy, 2) polygyny, 3) polyandry, and 4) polygynandry. The final, rarest mating strategy, found in less than 0.1% of all bird species, is polyandry.

2002 189

2002 North America 2000 2009 189

10,000 Birds

APRIL 24, 2012

Within the bird world, so many different strategies and methods of mating and reproduction have evolved, it simply boggles the mind. When it comes to breeding, Yellow-rumped Warblers are a good example of what many people regard as a “regular” bird. Other infamous brood parasites include cowbirds and Old World cuckoos.

Albatross 231

Albatross Lifestyle Birds Raised 231

10,000 Birds

JULY 25, 2022

Gisela Kaplan has written a book about the species, and how they seem unperturbed by humans: “It’s one of their most successful defense strategies. When these birds breed, this can lead to highly cringeworthy announcements, for example from Adelaide Zoo : “We have egg-citing news! ” ( source ).

Australia 263

Australia Birds Mountain Goats Ducks 263

10,000 Birds

MAY 15, 2023

Unfortunately, the Ashy Drongos did not exactly do what he predicted that they would do – mob potential predators more frequently during the breeding season and mob the more dangerous predator (in this case, the Black Eagle) more intensely. Well, maybe some hardcore creationists, I guess.

China 230

China 2017 Birds Indonesia 230

10,000 Birds

OCTOBER 3, 2022

The bird “spent five months on Mindoro Island in the Philippines during the non-breeding season and migrated through Taiwan, the Chinese east coast, and the Korean peninsula” and on to the Russian Far East (indicating a certain lack of solidarity with Ukraine). This is not really an option at Nanhui though.

China 228

China Birds Ukraine Killing 228

10,000 Birds

OCTOBER 17, 2022

For the authors of this study on the Sabota Lark , this makes them end the abstract of their paper with the slightly pompous and simultaneously slightly unambitious claim that “This study provided a foundation for future comparative studies on avian life-history strategies in larks.” She also laid eggs in Melba Finch nests.

South Africa 235

South Africa Africa Cape Verde Birds 235

10,000 Birds

DECEMBER 4, 2021

The guide, one of the last offerings in the Peterson Field Guide series from publisher HMH, shows photos of nests of most North American species and describes nest structure, location, how the bird makes the nest, number of eggs, and what the eggs look like. Donna). ==. Donna). ==.

Colombia 246

Colombia Birds Bald Eagle Guyana 246

10,000 Birds

DECEMBER 7, 2021

This may have been partly a leftover from the Victorian fascination with egg collecting (the infamous passion known as oology), but probably more from people’s burgeoning interest in the nests and eggs found in their gardens and fields, gateway artifacts to a newer hobby called birdwatching. Baicich and Colin J.

Eggs 263

Eggs United States Sparrows Birds 263

10,000 Birds

NOVEMBER 7, 2017

.” It is a relief to eventually reach the chapter on The Life of Waterfowl, written in a much more conversational style and unashamedly fascinated with waterfowl’s unique breeding behaviors. But, that guide focused on duck’s bills, not on hunting strategies. I’m withholding judgment for the time being.

Ducks 149

Ducks Geese North America Hunters 149

10,000 Birds

MAY 1, 2023

To be honest, both the robin and the flycatchers shown above remind me of the easter eggs I hunted for as a child – the same strong colors in front of a green background, same time of the year (feel free to insert your own Proust Madeleine reference here) … Bluethroats apparently are good at imitating other birds.

Monkeys 147

Monkeys Birds South Korea Owls 147

10,000 Birds

JUNE 8, 2023

It is kind of rare to see a Fairy Pitta during Shanghai’s spring migration as those passing through are all adults rather than inexperienced chicks, and they are in a rush getting to their breeding grounds – but I was lucky. This should not be a problem in Shanghai as the pitta has not been reported to breed here.

China 130

China Tenant Pakistan Birds 130

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.

China 147

China Birds Eggs Breeding 147