• Skip to content
Macaulay Library Macaulay Library
Search
Not found
Not found
Menu
Close

Main navigation

  • Search
  • Resources
  • Dashboard
  • Merlin
  • About
  • Help

Secondary navigation

  • Donate
  • Sign in

Language

  • Čeština
  • Deutsch
  • English
  • Español (América Latina)
  • Español (España)
  • Euskara
  • Français
  • עִברִית
  • Italiano
  • 日本語
  • Монгол
  • Norsk
  • Português (Portugal)
  • Português (Brasil)
  • Русский
  • Türkçe
  • Українська
  • 中文 (繁體)
  • 中文(简体)

ML635089267

Northern Harrier Circus hudsonius

Report

Contributor

Collin Smith Media from this contributor Profile

Date

26 Apr 2025 eBird checklist S229525433

Location

Dewey Marsh SWA
Portage, Wisconsin, United States
Media from this location Illustrated Checklist
Map
Map Coordinates: 44.6438525, -89.5582724
Age
Not specified
Sex
Not specified
Behaviors
Flying
Sounds
Call
Playback
Not specified

Media notes

I believe these are three calls from Northern Harrier that I inadvertently picked up while recording Swamp Sparrow. The coloration frequency response for the harrier calls is probably not the best since they were probably off-axis of where I was pointing the shotgun mic, but I would note in the recording about 30s later that I was watching two harriers float by passing over the road so they would have been out over the sedge meadow where the swamp sparrow was and probably not too far off-axis. Looking at Birds of the World, this call seems to be a call that is often given by by female harriers ```in an effort to induce food transfers, hunting by the male, or to “solicit” copulation```. Nanoshield 80hz high-pass filter Filename: 250426_004_Tr1_trimmed_normalized_eq-down-below-400hz-1000hz_lpf_hpf25-30-3_normalized_SELECT_FOR_NOHA_eq-down-below-1250hz-and-above-10khz_NOHA.wav

Additional species

  • Swamp Sparrow Melospiza georgiana
  • American Bittern Botaurus lentiginosus
  • Sedge Wren Cistothorus stellaris
  • Wild Turkey Meleagris gallopavo

Technical information

Recorder
Zoom F3
Microphone
Rode NTG5
Accessories
Rycote Nanoshield
Original file size
2.06 MB

Cornell Lab of Ornithology

Collections and Guides

  • Cornell Guide to Bird Sounds: United States and Canada
  • Radio Expeditions
  • Internet Bird Collection
  • Oriental Bird Club Image Database

Resources

  • Preparing and uploading media
  • Recording tips
  • Using and rating media
  • Request media
  • Target species
  • Photo + Sound Quiz
  • Audio editing tutorials
  • Setting up recording apps
  • Choosing recording gear
  • Sound recording workshops
  • Student opportunities

About

  • History
  • Our team
  • Contact
  • Land acknowledgement
  • Web accessibility assistance
  • Privacy policy
  • Terms of use
Donate

Follow us

Cornell University Cornell University
© 2025 Cornell University