en Español

 

Introduction

Microphone Design

Recording gear

Analysis Software

Flight Call Library

Publications

Links

21c mic

 

 

  Nocturnal flight call activity index

click on A yellow Station marker

 

 

2014 nightly call totals

Eastern North American Transect 2013

 

Contact:       ear2sky       at      oldbird       dot       org

501(c)(3) nonprofit facilitating avian flight call monitoring. 

 

Copyright © 2012 Old Bird, Inc.