Рет қаралды 1,774
Do birds of a feather flock together? Usually... NO! Most birds are in mixed species flocks for most of the year. Let's learn why they might do that! Please subscribe to continue learning what makes life AWESOME: BioBush.tv/sub...
First we learn three benefits for single species flocks.
- A single-species flock will always stop in the right place for their species.
- It's easier to find a partner (when birds gather in single-species flocks for part of the year, this is often the reason)
- Flocks are safer, so gathering in a flock with your own species should have evolutionary advantages.
Then we learn three factors supporting mixed-species flocks.
- If flocks are safer, then it would be more convenient to form a flock out of any birds in the area, rather than waiting for one species.
- Mixed-species flocks can eat many different foods, meaning they can access more food in the same area.
- There are several reasons why foraging efficiency might increase in a mixed-species flock.
So with benefits on either side, birds choose what works for them. And what works for most species, most of the time, is mixed species flocks. In general, birds of a feather do NOT flock together.
If you would like to share this video the custom link is BioBush.tv/mixed
Copyright
Photo "DSC_8774.NEF" by Brian Ralphs, via Flickr (www.flickr.com.... Used under Creative Commons cc-by 2.0.
Photo "DSC_8786.NEF" by Brian Ralphs, via Flickr (www.flickr.com.... Used under Creative Commons cc-by 2.0.
Video "Feral parrots visit my backyard" by AnimalsAreWacky ( • Video ). Used under Creative Commons cc-by 3.0.
Video "La comida de Carlota" by Federico Filacchione ( • La comida de Carlota ). Used under Creative Commons cc-by 3.0.
Bizarre Birds - BioBush.tv/bir...
Every Bird Ranked - BioBush.tv/rank1
//
New animal videos every Friday. Life is AWESOME. Learn why!
I'm tweeting about birds at - / biobush
And now Instagram at - / biobush
Thanks for watching! You're awesome!