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Robin Egg Blue

10,000 Birds

A closer look at the location the bird flushed from revealed this: After quickly taking a couple of pictures while the robin cluck-clucked her displeasure I retreated and waited for a few minutes, guarding against cowbirds, until the robin returned to the nest. Good luck, egg! ……… a.

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Echidna-egg laying mammal-500th post!

10,000 Birds

When I realised that this weekend would be my 500th post for this website I thought I could broaden the “birding” topic to “egg-laying” topic. In Australia we have two egg-laying mammals. It could be a bird, lizard or a mammal! The post Echidna-egg laying mammal-500th post!

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Least Sandpiper at Big Egg Marsh

10,000 Birds

Shorebirds and seabirds will serve nicely for a couple of weeks until we hit the summer birding doldrums when birders consider things like butterflies and dragonflies, as heretical as that may sound. These birds were foraging the shoreline at Big Egg Marsh in Queens, probably hoping for some Horseshoe Crab eggs.

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Photo Essay: Green-rumped Parrotlets from Egg to Adult

10,000 Birds

Nick Sly, a friend of 10,000 Birds who writes intermittently at the thoroughly-recommended Biological Ramblings , is an ornithologist who graduated not so long ago from Cornell only to be cast out into the real world where he keeps a wry eye on all things biological! The youngest bird in this clutch is only two or three days old.

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Killdeer from Egg to Adult

10,000 Birds

This ability to nest even in close proximity to humans is a trait I got to take advantage of way back when I first started writing on 10,000 Birds. Killdeer on nest Killdeer eggs One day while we were at work my coworker received a phone call letting her know that the eggs had started to hatch.

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The Chemistry of Birds (4): Eggshells

10,000 Birds

Eggshells consist primarily of an inorganic chemical, calcium carbonate – chemically, it is very similar to marble. It accounts for about 96% of the dry mass of eggshells. The remaining components include an organic matrix (2%) as well as magnesium, phosphorus, and various trace elements.

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Pied Oystercatcher eggs become chicks

10,000 Birds

One of the pairs of Pied Oystercatchers on Cable Beach have hatched their eggs this week. There had been one egg in the nest scrape on July 25th and a second egg followed. This Tuesday I was expecting the eggs to start to hatch and they did just that. Shading two eggs.