This episode—which is Number 94— is all about the Avian Digestive System. That’s right, kids, we’re looking at bird guts today!

If you’ve ever wondered what happens to a fish swallowed by a kingfisher or what happened to that piece of bacon swiped off your lunch plate by a cheeky Ring-billed Gull... Well, you're about to find out.

I’ll do my best to describe in words the anatomical features we encounter today. But I’ve also drawn a diagram for you. You can check that out on the show notes for this episode on the Science of Birds website.

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Link to this episode on the Science of Birds website

This episode—which is number 93—is all about the the House Sparrow (Passer domesticus), one of the world’s best known and most abundant birds. It expanded across the planet along with humans over the last 10,000 years, with the spread of agriculture. Today, this plucky little bird is a model organism for the study of basic bird biology. Over 7,000 scientific studies of the House Sparrow have been published.

In this episode, we’ll get into what this species looks and sounds like, where it lives, its behavior, its breeding biology, and more.

Links of Interest

• World Sparrow Day

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Link to this episode on the Science of Birds website

This episode—which is Number 92—is all about the value of desert ecosystems as habitats for birds.

Deserts are important for the birds that are adapted to live in them—birds that can handle the harsh conditions.

Deserts are home to relatively few bird species. Only the polar regions and maybe some parts of the open ocean have less bird diversity.

Even if a bird species can handle the extremes of heat and cold in a desert, the desiccating winds, and the lack of water, that bird may not find much food.

Because where there are few plants, there are few invertebrates. So a bird in the desert can have a hard time finding any leaves, seeds, fruit, or bugs to eat.

And yet, an assortment of bird species from many disparate families have managed to carve out an existence in the world’s most arid lands. There may be nowhere near as many of them as in, say, a tropical rainforest or a temperate woodland…

BUT, the birds we do find in the desert are, I think, a particularly fascinating and admirable bunch. They’re tough little buggers. They’re resilient. Desert birds have interesting adaptations and behaviors that allow them to survive in places that would kill most other birds in a day.

CORRECTIONS: I realized after I recorded this episode that I mispronounced the names of the Namib and Thar deserts. Namib should be pronounced "NAH-mib." Thar is pronounced "Tar."

Links of Interest

• Grayish Miner in the Atacama Desert [VIDEO]

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Link to this episode on the Science of Birds website