https://www.sciencedaily.com/releases/2013/03/130305100957.htm
For birds, red means 'go': Some flowers evolved red hues favored by birds | ScienceDaily
New research has shown that certain Australian native flowers have shifted away from using insects as pollinators and evolved their flower color to the red...
red means gofor birds
https://celestialkitties.blogspot.com/2012/04/red-means-go-green-means-stop.html?showComment=1334246532711
Celestial Kitties: Red Means Go, Green Means Stop!
As we left yesterday, Leo had spied a new stringy! Or did he? New Stringy? This stringy moves! Stringy keeps coming out of this bag!...
red means gocelestial kittiesgreenstop