Field Notes

dawn villaescusa
108. by dawn villaescusa on October 30, 2011 at 04:40 pm

I have been enjoying three Anna's at my feeder this year. The adult female seems chunky and large compared to the two juveniles. Recently I've noticed one of the juveniles is gaining red around the sides and top of his head so I'm now sure I have two females and a male. What fun to watch them mature and grow -- they now contend more boldly with the adult for the feeder.

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Citation: Personal Experience. I recently observed this, confidence uncertain at this time.

Marlowe Kissinger
157. by Marlowe Kissinger on January 13, 2015 at 06:03 pm

I heard a sound today from a male and was told it is part of him trying to court a female. They go up high and dive and make a sound to attract the female.

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Citation: Personal Experience. I recently observed this, confidence uncertain at this time.

Dave Irons
reply by Dave Irons on January 15, 2015 at 12:28 am

Two researchers at the University of California at Berkeley used high-speed video to capture the "tail chirp" that males make at the bottom of their display dives. Here's a link to a pdf of their paper. http://rspb.royalsocietypublishing.org/content/275/1637/955

Expanded Life History

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Courtship

I learned today the male will dive and make a sound to attract the female.

by Marlowe Kissinger on January 13, 2015 at 06:01 pm
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Recent Activity

Activity Date & Time
Marlowe Kissinger added a note to Anna's Hummingbird Notes 1/13/2015 at 6:03PM
Steve Dimock added Anna's Hummingbird to their Bandon South Jetty Area smart list 11/04/2012 at 11:45AM
Steve Dimock added Anna's Hummingbird to their La Kris Inn smart list 10/06/2012 at 12:00PM
dawn villaescusa added Anna's Hummingbird to their Las Vegas, NV smart list 12/29/2011 at 10:55AM
Jacob Parks added Anna's Hummingbird to their North Albina smart list 11/02/2011 at 12:42AM
dawn villaescusa added a note to Anna's Hummingbird Notes 10/30/2011 at 4:40PM