Bird migration

Published on Dec 16, 2013 Please support MinuteEarth on Subbable! -https://subbable.com/minuteearth Thanks to the following Subbable supporters, who help make MinuteEarth possible: Cherishport – http://www.facebook.com/cherishportmusic Maria Korchagin – https://plus.google.com/u/0/+MariaKor… Georgi Yanev Jonathan Smith – http://www.lovinnoon.com Herein we explain that birds do not … Continue reading

Published on Dec 16, 2013

Please support MinuteEarth on Subbable! –https://subbable.com/minuteearth

Thanks to the following Subbable supporters, who help make MinuteEarth possible:

Cherishport – http://www.facebook.com/cherishportmusic
Maria Korchagin – https://plus.google.com/u/0/+MariaKor…
Georgi Yanev
Jonathan Smith – http://www.lovinnoon.com

Herein we explain that birds do not hibernate in lakes, do not migrate to the moon, but DO go on very unique journeys, which we humans have learned about in a variety of ingenious manners.

Created by Henry Reich
Video Concept and Writing: Laurie Allmann
Animation: Ever Salazar
Production and Writing Team: Alex Reich, Peter Reich, Emily Elert
Music: Nathaniel Schroeder:http://www.soundcloud.com/drschroeder

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References

Preuss, N.O. 2001. Hans Christian Cornelius Mortensen: aspects of his life and of the history of bird ringing . Ardea 89(special issue) : 1-6 .
http://ardea.nou.nu/ardea_show_articl…

First banded bird recovery in Africa:
http://jncc.defra.gov.uk/PDF/pub07_wa…

Discoveries with satellite telemetry:
–bar-tailed Godwits fly non-stop over the Pacific, from Alaska to New Zealand, a 7000 mile journey at an average speed of over 35 miles per hour, in about 8 days
[http://www.nature.com/scitable/knowle…]

Eagle migration tracking:
http://www.raptors-international.org/…

Arctic tern, longest migration:
http://news.nationalgeographic.com/ne…
http://www.pnas.org/content/107/5/207…

Ancient Migration theory:
http://www.uh.edu/engines/epi2228.htm
http://www.npwrc.usgs.gov/resource/bi…

Bar-tailed godwits:
http://www.nature.com/scitable/knowle…

Bird Migration: A General Survey By Peter Berthold
http://books.google.com/books?hl=en&a…

Bald Eagle tracking: http://www.raptors-international.org/…
citation to original paper: http://pubs.er.usgs.gov/publication/5…

Images
Bar-tailed Godwit
Photo by: Andreas Trepte http://www.photo-natur.de
http://en.wikipedia.org/wiki/File:Bar…

Birds Hibernating
http://blogs.northampton.ac.uk/mikere…

Artic Tern
Photo by: Malene Thyssen
http://en.wikipedia.org/wiki/File:Hav…

Geolocator
Photo by: Lyndon Kearsley & Theo Geuens
http://www.migratetech.co.uk/geolocat…

Raisin
Photo by: Cary Bass
https://upload.wikimedia.org/wikipedi…

Modern electronic flashes

The technique changes a bit depending on the bird species. Gerry states, “When I photograph hummingbirds, I don’t use the remote trigger. The multiple flashes however, are crucial in photographing them. One would think a trigger would especially be needed … Continue reading

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The technique changes a bit depending on the bird species. Gerry states, “When I photograph hummingbirds, I don’t use the remote trigger. The multiple flashes however, are crucial in photographing them. One would think a trigger would especially be needed for these little guys but not so! A hummer will come to the feeder or flower and stay there for a bit to get a drink so a person is able to get shots by snapping the shutter the old fashioned away, with their finger.”

Photo: Gerry Sibell

Birds are sensitive to light, the way they have their ‘ritual’ of singing as the sun goes down is quite a mystery, as they obviously see the changes within the sky. If  these photos are harming the bird it would be another example of ‘human intent’ like tagging animals to save them & making pandas watch porn.

Modern electronic flashes are incredibly fast, usually much faster than any shutter speed, meaning the photo was over and done with long before the bird had any opportunity to look startled or anything else. As for bright flashes causing harm, do local bird populations die off after lightning?

This type of “set up” photography is becoming very popular in the USA the primary proponent being Alan Murphy – the multiple flash setup are used more as filler light than primary exposure – modern electronic flashes under the control of a professional DSLR camera can control the flash output – nobody gets blinded any more than they would looking in the direction of the sun.