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Book 31, Question 123 · Video

Why do some birds attack their own reflection?

Video · 1:54 · Crafty Clover explains, from A Million Whys Book 31

In the spring, birds like robins and cardinals defend their patch of land from rival birds. When one sees its reflection in a window, mirror, or shiny car, it thinks another bird has arrived. So it flaps and pecks at the glass, trying to chase it away. The reflection never leaves, so the bird keeps trying. Covering the shiny spot for a few weeks usually stops the behavior.

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What Crafty Clover says in this video

Intro

Hi there, curious minds! I'm Crafty Clover! Let's discover something amazing. Why do some birds attack their own reflection?

The Big Idea

Some birds peck at windows and mirrors! Tap, tap, tap. Why do they attack their reflection?

Defending Land

Step one: Defending Land. In spring, birds like robins and cardinals defend their patch of land from rival birds. They chase away any bird that seems to be moving in.

A Pretend Rival

Step two: A Pretend Rival. When one sees its reflection in a window, mirror, or shiny car, it thinks another bird has arrived. So it flaps and pecks at the glass to chase it away.

It Never Leaves

Step three: It Never Leaves. The reflection never leaves, so the bird keeps trying. A grown-up can cover the shiny spot for a few weeks, which usually stops the behavior.

A Closer Look

Let's take a closer look! Defense time. Guarded. Looks like a rival. Stops it.

Quick Facts

Quick facts! The bird usually isn't hurt, but it may get tired. Robins and cardinals often do this. Shiny cars can reflect too. Covering the glass helps.

Think Like a Scientist

Now, think like a scientist! Look at your reflection in a window at night. Wave at it. What would a bird think? Draw a short comic strip about a bird meeting its reflection. How does your story end?

Outro

In spring, birds like robins and cardinals defend their territory. When one sees its reflection, it thinks a rival has arrived and pecks at it, and since the reflection never leaves, covering the shiny spot usually helps. Science is amazing! Remember, every big discovery starts with a small question. Keep looking, keep learning, and keep asking why! Crafty Clover can be found on Amazon Books, Google Bookstore, and Apple Books. Available for purchase or download! Bye for now!

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