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Fledgling Theories

An informal, monthly discussion of recent scientific research about birds.

Ranked #1

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Birds and cities are like grape juice and paper towels

Birds and cities are like grape juice and paper towels

In TV advertisements, it seems paper towels can always absorb more grape juice.  Are urban areas similarly able to take ... Read more

11 Oct 2019

33mins

Ranked #2

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Fly straight on 'til morning... then what?

Fly straight on 'til morning... then what?

Like Peter Pan, migrating birds fly through the night, straight on 'til morning... but then what? Usually as dawn arrive... Read more

4 Oct 2018

29mins

Ranked #3

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Auditory Archive: Yellowhammer dialects across two countries and 100 years

Auditory Archive: Yellowhammer dialects across two countries and 100 years

Roughly 100 years ago, some Yellowhammers (Emberiza citrinella) were captured in England and released in New Zealand. Th... Read more

6 Sep 2018

28mins

Ranked #4

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Feathery Chemistry: using isotopes to track migration

Feathery Chemistry: using isotopes to track migration

Stable isotopes are a pretty hot topic in bird research these days. But what are they, and how are they used? What can i... Read more

2 Aug 2018

40mins

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Ranked #5

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Feed the birds, tuppence a bag

Feed the birds, tuppence a bag

Feeding the birds is big business these days, but how has all that food availability affected bird communities? It turns... Read more

6 Jun 2019

31mins

Ranked #6

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This little birdie migrated, this little birdie stayed home

This little birdie migrated, this little birdie stayed home

No matter where you live, you probably see some bird species that seem to stay put all year long. But did you know these... Read more

7 Mar 2019

34mins

Ranked #7

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Your Christmas Bird Count data at work!

Your Christmas Bird Count data at work!

Long running, citizen science data collection projects like the Audubon Society's Christmas Bird Count and the North Ame... Read more

3 Jan 2019

38mins

Ranked #8

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Egg Hunt Arms Race

Egg Hunt Arms Race

Is there an evolutionary arms race between birds trying to hide eggs and birds trying to find eggs?  If so, who is racin... Read more

17 Jul 2019

29mins

Ranked #9

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Is that umbrella looking at me? And other concerns of an urban bird

Is that umbrella looking at me? And other concerns of an urban bird

Do birds get used to people walking past?  Today we are talking about whether birds in rural and urban areas differ in h... Read more

7 May 2019

30mins

Ranked #10

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Feathered Fruit Peelers

Feathered Fruit Peelers

Does it help or hurt a plant to have birds eat their seeds? Birds can help plants by moving their seeds to new places, b... Read more

7 Feb 2019

30mins

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