This idiom is literal in its origin! There are actually love birds. Read about them here . The figurative use is for people who have a shared love.

Before the advent of cars, one could see and smell the emissions of horse-drawn wagons in New York. Since there was no way of controlling these emissions, they - or the undigested oats in them - served to nourish a large population of English sparrows. If you said that something was for the birds, you're politely saying that it's horse crap. ( source ) Today when the phrase is used its meaning is that it is something worthless.

There's a couple of different theories out there about "the bird", i.e. extending one's middle finger toward someone to communicate displeasure.  This theory grew out of an old practice of hissing at poor stage performers back in the day, you can read about what hissing and "the bird" have to do with one another here .  Another theory has to do with The Clouds , a play written in 423 B.C. That short explanation is given here .  And finally, one last theory - perhaps the most plausible of all - is that the middle finger is a sexual gesture meant to represent having sex. Wikipedia gives all the info on this theory .

The literal meaning of this phrase has to do with hunting methods back in the day (I'm talking way back).  In mediaeval falconry where a bird in the hand (the falcon) was a valuable asset and certainly worth more than two in the bush (the prey). These days the modern meaning of this phrase is  it is better to have an advantage or opportunity that is certain than having one that is worth more but is not so certain.

Star Wars Day The Official Website The History of Star Wars Star Wars is everywhere! Find it on Facebook , YouTube , Twitter , Instagram And if you type Star Wars into pinterest.com search you will have no lack of party ideas, decoration ideas, art, jewelry, costumes, and so much more. Have you seen Star Wars? If not make plans to watch the original 3 soon!  As for the prequel 3, the newest ones which are supposed to be the oldest ones, eh.  Take 'em or leave 'em, you don't need to ruin a great series with the attempt George Lucas made. One of the most recognizable theme songs perhaps ever... Petite and Proud Day Petite Celebrities , are there no men really?  I'm guessing there has to be! A website just for petites Firefighters Day The History of Firefighting 10 Must Do Things If You Want to be a Firefighter Bird Day Everything you wanted to know, and maybe more, about Birds National Candied Orange Peel Day Make your own...

Bird Day This is the first of 3 recognized bird days in this next year. So, I'll do my best to keep the info spread out and not firehose anyone with too much information! Bird Day aims to raise awareness of the plights faced by common and rare birds, from disease and environmental factors to illegal trade and welfare in captivity. ( Source ) The Official Website which gives all sorts of education and ideas regarding birds. Whipped Cream Day  I do love me some whipped cream! You? I was always intimidated at the thought of making my own whipped cream instead of picking up a tub of Cool Whip. And then one time I felt brave. Holy Smokes! It was easy and DELICIOUS!  Try it for yourself, I promise you'll be amazed.   Here's one of several recipes out there, they are all basically the same though.