how does one identify a male ostrich?
81308
Size: Males are larger.\nColoration: males have black and white feathers, whereas females are less conspicuous, usually grayish brown (probably for crypsis). In sexually mature animals, the legs have red plates (males), or black plates (females).\nBehavior: During the breeding season, males watch primarily for predators and/or conspecifics, whereas females have shorter vigilance periods and spend more time feeding. \nMales can be aggressive during this season.
449953
Mountain Blue Bird is the only thing that looks similar in my Audubon Bird Guide to the Western Region.  \n\nhttp://images.search.yahoo.com/search/images?fr=FP-pull-web-t&p=Mountain%20Bluebird
364180
I'm guessing a Bactrian Camel
786079
Are they by any chance Ostrich eggs?
970010
its gotta be the Sage Grouse, you must be watching fights between the males for mates or territory.  The males will puff up their chests to display for females and to intimidate other males.\n\nhttp://en.wikipedia.org/wiki/Sage_Grouse\nhttp://images.search.yahoo.com/search/images/view?back=http%3A%2F%2Fimages.search.yahoo.com%2Fsearch%2Fimages%3Fei%3DUTF-8%26fr%3Dush-ans%26p%3Dsage%2520grouse%26fr2%3Dtab-web&w=300&h=245&imgurl=www.wildlife.utah.gov%2Fnews%2F04-04%2Fsage-grouse.jpg&rurl=http%3A%2F%2Fwww.wildlife.utah.gov%2Fnews%2F04-04%2Fsage-grouse.html&size=10.5kB&name=sage-grouse.jpg&p=sage+grouse&type=jpeg&no=4&tt=3,031&oid=d5fbd7a6a12dedca&ei=UTF-8
183903
parakeet?  gay oompa loompa?
1002794
Here are some good sites for bird identification:\n\nhttp://www.enature.com/fieldguides/intermediate.asp?curGroupID=1\nhttp://www.mbr-pwrc.usgs.gov/Infocenter/infocenter.html\n\nBut, as you say, it can be hard to find something on these sites if you don't already have an idea of what you're looking for.\n\nMy guesses would include European Starling, Brown-headed Cowbird, Rusty Blackbird, or a Brewer's Blackbird.  I think the highest probabilities would be a female of one of the blackbird species.\n\nHope this helps!
717215
What species of male?\n\nLimp or aroused?\n\nGotta be a little more specific here!
1075086
You need the National Audubon Society Field Guide to New England.  I have it at home and use it all the time to identify animals in New England.  It tells you locations of each animal by state.\n\nIf I get a chance, and this question is still up later, I'll Edit it and add an answer for you, but definitely check out that book.
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
48026
I'll bet it was EMU, related to the ostrich
441057
An immature bird has speckled brown feathers all over, the distinctive head and body plumage arriving 2–3 years later, before sexual maturity. Adult females have a wingspan of approximately 2.1 meters (7 feet); adult males have a wingspan of 2 meters (6 feet, 6 inches). Adult females weigh approximately 5.8 kg (12.8 lb), males weigh 4.1 kg (9 lb).\n\nhttp://en.wikipedia.org/wiki/Bald_eagle
792048
Don't know about the reddish shoulders, but it could be an Abyssinian ground-hornbill - they're pretty big birds.
820767
There is no real way of telling them apart, they are what you call sexually monomorphic and monochromatic, meaning they have no physical difference or difference in color. The females are slightly larger than the males, but you would only really be able to tell them apart if you had both in your hands. Under a microscope with some entomological knowlegde, you would be able to see the genetalia, but with the naked eye, it is quite difficult.\nThe best way to tell would be to find a pair in copulation, the one on the bottom is the female and the one on the top is the male. Seeing this will also give you an idea of the size of a female compared to the male....but thats about all....\n\nHope this helps!
889862
I've heard that some people think they can tell the sex of a deer by looking at its tracks but I have never seen anyone who can do it with enough regularity for it to have any meaning.  The most often heard method is to look for wider tracks and the presence of dew claws.  Supposedly, the buck has a wider track with dew claw prints while the doe had a narrower track without dew claws.  This doesn't hold up in actual practice because the wider track only means that the deer was a bit larger than another deer with a more narrow track.  It has nothing to do with the sex of the deer.  A big doe with a yearling fawn will leave a wider track than the yearling fawn even if it is a male.  Now, I have to admit, if you see an exceptionally wide track with the presence of dew claws, it most likely is a buck simply because bucks tend to be larger than does.  A big deer leaves a wider track than a smaller deer regardless of its sex.  I've also heard that there is some difference between doe droppings and buck droppings but I have never seen anyone who could actually tell the difference.  Deer droppings all look the same to me and I have seen a lot of deer droppings.  Turkey droppings are another thing.  There is a definite difference between gobbler droppings and hen droppings but you didn't ask about turkey droppings.
646620
Well what is it ?\nA bird or a mammal ?\nIf you don't know you'd better leave it alone it could be a potato
264428
Sparrow hawk is not that large. Most probably a norther harrier male. They average about 20 in. in length. The key field mark is a white rump. It is very evident in flight. The males are gray above and lighter gray below. There is a possibility that it was a northern goshawk but they are uncommon. They have a broad white eyebrow that is very evident. They are not white below but a dull light gray.