Irruptive Species

December 2014

Take a Look December 10, 2014

The Patterns of Irruption

Last week, we introduced you to the concept of irruption and some irruptive bird species. Now we invite you to take a look at data collected during the last 25 years of Project FeederWatch. What can you notice in the data? Click on each image below to go to the interactive distribution maps and trend graphs and then tell us what you’ve found in the comments below.

Common Redpoll

Common Redpoll
Click here to go to the Common Redpoll interactive data

Evening Grosbeak

Evening Grosbeak
Click here to go to the Evening Grosbeak interactive data

Pine Siskin

Pine Siskin
Click here to go to the Pine Siskin interactive data

Red-breasted Nuthatch

Red-breasted Nuthatch
Click here to go to the Red-breasted Nuthatch interactive data

See More Species Data

Visit the Project FeederWatch trend graphs page.

This Month’s Articles

Irruptives Seen By You! Participant Photo Slideshow

Slideshow December 29, 2014

Find The (Irruptive) Flock

From Our Data December 18, 2014

The Patterns of Irruption

Take a Look December 10, 2014

What is an Irruptive Species?

Slideshow December 3, 2014

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