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Bird Populations

Bird Populations

Introduction

Visit the following website and read the Overview and the Discussion. Use the information on these pages to complete the table below.


Movements of Bird Populations
http://www.birdsource.org/GIS/index.html


Type of Movement Spatial Extent Time Scale Example

Seasonal Migration


     

Range
Expansion/Contraction

 

     

Irruptions


     

Static Populations


     


What Does it Mean?
In your own words, describe each type of bird movement that you have learned about in this lesson. Specifically address the types of patterns for which researchers look. Discuss the similarities and differences among the different types and the ways that scientists study these movements.

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