Jim Gilbert's Nature Notes: Listening to loons

  • Article by: JIM GILBERT , Special to the Star Tribune
  • Updated: June 12, 2014 - 2:31 PM

Calls of the common loon are captivating and memory stirring. What would our northern and central Minnesota lakes be without this mournful cry and laughter of the wilderness? To appreciate loon calls you simply have to hear them in their natural setting. And as we listen, the variations of yodel, tremolo, wail, and other calls can tell us much about loon behavior.

The yodel-call, “oo-AH-ho,” is used for territory advertisement and defense. It is given only by the male. The far-carrying wail-call, “ahaa-ooo-oooo-oooo-ooo-ahhh,” is frequently used and helps the pair keep in contact with each other. This call is often heard at night and is considered the mournful cry of the wilderness.

The tremolo-call, a wild laugh, is probably the loon’s all-purpose call and can signal alarm, worry or greeting. Usually the tremolo is coupled with a behavior response such as a dive, a run on the water surface or a takeoff, and it’s the only call loons can give while in flight. The presence of people often evokes the tremolo, especially when boaters approach too closely. But we must remember, the tremolo isn’t reserved just for intruding humans. Millions of years before people appeared the tremolo-call echoed across ancient lakes. Loon pairs frequently use a tremolo duet when something threatens their young. This splendid tremolo duet is also used in spring to reinforce pair bonds and to advertise territorial rights.

Jim Gilbert’s Nature Notes are heard on WCCO Radio at 7:15 a.m. Sundays. His observations have been part of the Minnesota Weatherguide Environment Calendars since 1977, and he is the author of five books on nature in Minnesota. He taught and worked as a naturalist for 50 years.

  • get related content delivered to your inbox

  • manage my email subscriptions

Click here to send us your hunting or fishing photos – and to see what others are showing off from around the region.

ADVERTISEMENT

St. Louis - LP: K. Siegrist 6 FINAL
Chicago Cubs - WP: J. Grimm 7
Toronto - LP: M. Buehrle 4 FINAL
NY Yankees - WP: H. Kuroda 6
Arizona - LP: W. Miley 5 FINAL
Philadelphia - WP: K. Kendrick 9
Washington - WP: T. Roark 4 FINAL
Cincinnati - LP: A. Simon 1
Boston - LP: J. Tazawa 4 FINAL
Tampa Bay - WP: D. Price 6
San Diego - WP: J. Hahn 5 FINAL
Atlanta - LP: A. Wood 2
Oakland - LP: J. Hammel 1 FINAL
Texas - WP: J. Williams 4
NY Mets - WP: C. Torres 3 FINAL
Milwaukee - LP: F. Rodriguez 2
Miami - WP: B. Hand 2 FINAL
Houston - LP: D. Keuchel 0
Chicago WSox - WP: J. Danks 9 FINAL
Minnesota - LP: K. Correia 5
Cleveland - LP: C. Carrasco 4 FINAL
Kansas City - WP: K. Herrera 6
Pittsburgh - LP: C. Morton 1 FINAL
Colorado - WP: B. Anderson 8
Detroit - LP: D. Smyly 1 FINAL
LA Angels - WP: M. Morin 2
Baltimore - WP: D. O`Day 2 FINAL
Seattle - LP: C. Furbush 1
Los Angeles - WP: Z. Greinke 8 FINAL
San Francisco - LP: T. Lincecum 1
Chivas USA 0 FINAL
Colorado 3
Calgary 26 FINAL
Edmonton 22
Winnipeg 23 FINAL
Brt Columbia 6
Ottawa 6:00 PM
Hamilton
Toronto 9:00 PM
Saskatchewan
Winnipeg 7/31/14 6:00 PM
Hamilton
Toronto 8/1/14 6:00 PM
Montreal
Brt Columbia 8/1/14 9:00 PM
Calgary
Saskatchewan 8/2/14 6:00 PM
Ottawa
Tulsa 77 FINAL
Washington 82
Chicago 79 FINAL
Atlanta 75
San Antonio 78 FINAL
Minnesota 88
Connect with twitterConnect with facebookConnect with Google+Connect with PinterestConnect with PinterestConnect with RssfeedConnect with email newsletters

ADVERTISEMENT

ADVERTISEMENT

ADVERTISEMENT

ADVERTISEMENT

question of the day

Poll: Should the lake where the albino muskie was caught remain a mystery?

Weekly Question

ADVERTISEMENT

 
Close