How many birds did on branch remain?
913278
NONE! But you need some English/grammar lessons!
921331
First, find your final value.  This is what your expression equals.  \n\nSo, you can see that the problem states that there are 17 ducks left.  Good start.  We can begin with:\n??? = 17\n\nNow, we tackle each part of the problem.  We see that we started with 28 ducks.  After that, 16 ducks fly in, so we need to incorporate 28 + 16.  So now we have:\n28 + 16 ??? = 17\n\nNow, we need to see what is being asked.  It is being asked how many ducks left.  Since ducks flying in would be addition, then ducks flying out would be subtraction.  We are being asked how many ducks flew out, so this is our unknown (we'll call it x).  Now we can write it as:\n28 + 16 - x = 17\n\nTo find the answer, you solve for x by getting it by itself on the equal sign.  Add 28 and 16 to get 44:\n44 - x = 17\n\nAdd x to each side and subtract 17 from each side:\n44 - 17 - x + x = 17 - 17 + x\n27 = x\n\nSo, 27 ducks flew out.\n\nNote that I added x to both sides above.  This is normally unnecessary, but I didn't know how far along you were.  For future reference, you may want to consider this step:\n44 - x = 17\n\nSubtract 44 from each side:\n44 - 44 - x = 17 - 44\n-x = -27\n\nMultiply each side by -1:\n(-x)(-1) = (-27)(-1)\nx = 27
457062
There are wild pigeons; they are called rock doves, though I sometimes think 'concrete doves' would be a better name.
265501
A flock is a group and a group is more than 2. So 3 birds would technically be a flock.
620221
The prairie vole, the Greater Prairie Chickens, and the wild Whooping Crane in this display were once abundant in Louisiana. Whooping Cranes used to breed and nest from Canada all the way to Louisiana. They stood close to five feet tall, with beautiful white plumage. They were often killed for feeding on grains in farmers¹ fields, or by hunters who did not realize they were endangered. As the Whooping Crane population became close to extinction, biologists had to intervene to save them. By 1954 there were only 25 of these birds left. Today the population is growing, but there are still only about 100 - a number that one major natural disaster could wipe out. \n\nBird watching, photography and sight-seeing are encouraged year round. Fall and winter months offer the best opportunities to observe flocks of migrating geese and ducks. Spring and summer are the best times to see wading and shore birds. Songbirds can be observed passing through the area on their spring and fall migrations. A bird checklist is available at the visitor center.\n\nHenslow’s Sparrow
449975
Tempting to say which one?... there were SEVEN... but in the end they kinda fizzled out with a whimper not a bang...\nbasically folks got fed up and slowly support died out.\n\nThere are loads of good sites with further info... below is just one.
862311
I think ornery ornithologists probably give each other the bird quite frequently.  After all, they egg each other on.  If they don't know what they are doing, they just wing it.  Why?  Just beak-claws.  Nest question?
1024616
What happened to the small animals in your area birds, fish, frogs, insects. Compare it to historical numbers of your area I believe you will be surprised.
350063
To find more birds. There are 9300+ in the world and I have seen only 546 so I have a long way to go.
5053
There's a good bird silhouettes picture with 10 or more birds included at:\nhttp://www.birds.cornell.edu/programs/AllAboutBirds/Birding123/IdentifyingBirds/idSilhouette.html
610274
1 Rooster\n5 Hens\n14 Chicks
558154
My two cluckers came out of eggs.  Did you know that there are two chickens for every human being on earth?  That's a lot of cluckers.\n\n\nChickens rule.
251973
I sure do wish I knew where you were and what grows where you saw the bird.  The link below is to my "Bible" of birdwatching sites with a link to the Eastern Bluebird - male and female.\n\nSecond link is to some other nature source information you might want to check out.
690764
food chain and bird food
747096
Yes, up to 15 years.  I'm surprised.  That's a whole lot of bird poop.  Bring back the hawks!
584664
Well I don't know a whole lot about birds - especially their cadence - but, Orioles are known to occupy Massachusetts, so is the Bay-Breasted Warbler, and the Carolina Wren, all have black body feathers and at least an orange throat or belly.\n\nHopefully that helps?
27624
go to http://www.birds.cornell.edu/programs/AllAboutBirds/BirdGuide/