do bluegill sunfish spread their eggs via ducks?
541579
Wading birds are thought to be a large factor in the spread of aquatic organisms upstream.  Especially passive dispersers.  I don't think ducks would be a big factor in the spread of bluegills because the adult fish can swim further and further upstream.  Also, I don't think the eggs are spread around, I believe bluegills build little nests for their eggs and lay them all in one place.  The larger fish are the main dispersing stage, not the egg.
588446
Yes they are called birds.
564928
If I'm understanding correctly, landlocked means they are isolated from all other bodies of water, such as rivers, other lakes, etc. I'd say they have to spawn, because if they didn't, they would not reproduce and, therefore, there would be no more little fishies. Unless they could have come from another body of water, I say yes.\n\nNot sure about the fry, though.
555584
Take your pick:\n\nbirds leave viable seeds in their droppings\nseeds drift in wind\nseeds catch on fur / clothing, and drop off, later\nseeds are found to be useful to humans, and we spread them\nwater (eg coconuts float, landing on distant shores, and sprouting)\n\nI am sure there are other ways...
326948
Probably not. You might want to go and see if you can't find that little guy again. And then, try going to www.audubon.org and see if there is a branch near you that might be able to take the bird in, or find a local vet to bring it to. Because you really can't put the bird into a random nest - what ever kind of creature owns it will more then likely reject it as well, since it's not that particular bird's off spring.
103715
Both birds belong to the family Anatidae, but have distinct characteristics.\n\nThe goose (male--gander) is a medium to large bird and makes a honking call. ("True geese" belong to the subfamily Anserinae.) Non-domesticated geese are very migratory, flying from far north to far south. Geese eat a vegetarian diet.\n\nhttp://en.wikipedia.org/wiki/Goose\nhttp://education.yahoo.com/reference/encyclopedia/entry?id=19498\n\nThe duck (male--drake) is smaller than the goose and the female often has a call more similar to "quack". (Contrary to popular belief, it does echo.) Ducks belong to several different subfamilies. Almost all domesticated ducks (excluding some in Central America) are descended from the Mallard, so they have very similar forms. Some duck species don't migrate, and some moult before migration, temporarily rendering them flightless. Many ducks eat fish, amphibians, and insects.\n\nLooks like biggest difference is if they honk or quack.
877316
I think we consider the idea of these researchers:\n\nGeochemist Christopher Romanek of UGA's Savannah River Ecology Laboratory (SREL) can determine the telltale composition of elements he finds in a feather through stable isotope analysis.\n\n"He can analyze a feather and tell us if that bird came from either a coastal colony or an inland colony by the carbon, because the salt marsh ecosystems utilize a different carbon than do the inland systems," said Larry Bryan, research coordinator of SREL's wood stork program.\n\nThe type of nitrogen Romanek finds indicates whether a wood stork is eating top-level wetland predators, such as large bullheads and catfish, or creatures farther down the food chain, including minnows, bluegill, crayfish and tadpoles.\n\n"That's interesting because the higher you get up the food chain, typically, the higher mercury concentrations you're going to have in these aquatic organisms," Bryan said.\n\nFor more than 15 years now, SREL researchers have studied the endangered wood stork (Research Reporter, Winter/Spring 1996). During the past three years, Bryan has recorded mercury concentrations in wood stork nestlings. The concentrations amount to less than a millionth of a gram, but they are high enough for the U.S. Fish and Wildlife Service to consider them potentially harmful. "Some of the nestlings could be at risk," Bryan said.
77205
The main diet of the kingfishers consists of various types of fish, especially brown trout, bluntnose minnows, bluegill sunfish, sculpin, and Atlantic salmon. They usually eat small fish, but  kingfishers have been observed to swallow fish as long as the bird itself, sometimes leaving an inch or so of the tail sticking out of the beak. If fish are scarce, they also eat snails, crustaceans, insects, amphibians, reptiles, young birds, small mammals, and berries..
87033
The answer is either “No” with a but or “Yes” with an and.\n\nRobins and chickens are totally separate species of birds. They are no more closely related than humans are to baboons. You wouldn’t expect a human and a baboon to be able to mate and produce babies would you? So no, robins and chickens can’t interbreed.\n\nHowever there are many different species of animal that CAN interbreed and produce offspring. But the different species need to be fairly closely related, far more closely than human and baboon… or a chicken and a robin.\n\nFor example we can interbreed horses and donkeys to produce baby mules, and we can breed cattle and buffalo, or camels and llamas. \n\nAnd the same is true of birds. While chickens can’t be bred with robins they are often bred with guinea fowl and pheasants for example, and occasionally bred with turkeys (see links below). \n\n\nSo to answer the question, yes different types of bird can mate and produce chicks, there's no doubt about that. But chickens and robins are not two types that are capable of it. Chickens and turkeys or chickens and pheasants are.\n\n\n>>>>>A robin and a chicken might be a stretch, but how about\n>>>>>two different types of sparrows? \n\nYes, in fact the various sparrow species are amongst the most likely to hybridise.\n\n>>>>>>Does it ever happen in the wild?\n\nRegularly. See the last two links.\n\n__________________________\n\nAddenda\n\nScientist said: "Only organisms of the same species can produce viable offspring"\n\nThat is simply not true. \n\nI know they teach you that in school, but it has no factual basis whatsoever and is not accepted by any biologist anywhere on the planet.\n\nJust to name a few examples cattle and bison, wolves and coyotes and fin and blue whales are all perfectly capable of breeding. They all interbreed commonly in the wild and the offspring are all perfectly fertile and have young themselves. \n\nEven lions and tigers will produce offspring that are capable of producing cubs, though most are not, and there have been at least 2 documented cases of mules having foals.\n\n\nUnless someone wants to argue that cattle and buffalo are the same species then ability to produce fertile offspring doesn't prevent two animals being seperate species in any way.\n\n\nSal said: "There are different kinds of chickens that can interbreed with each other. But a chicken can't breed with a turkey."\n\nA total lie with no basis in reality. I just provided links which prove that turkeys can breed with chickens.\n\nSal also said"This is one of thousands of examples as to why the theory of evolution is hard to swallow. If animals can change into other kinds of animals, you would be able to see at least a slight form of interbreeding betweeen different species, but you dont."\n\nWell since I have proved this belief completely wrong, and Sal now knosw that interspecies breding is common, even in the wild, I guess Sal will now accept evolution?\n\nYeah, right. Like facts and evidence played any part his belief.
756997
That sounds like a Monarch Butterfly catapillar. They feed on milk weed and migrate between Canada and Mexico.
519607
Ducks dont mate for life, and i think its the season after they are born. \n\nMagpies mate for life which is why it is bad luck to see one on its own, it means theyre partner had die.
223508
Yes, Birds can cover MANY miles each and every day. When they stop to feed, drink or bathe they pad around in water. Most often nothing sticks to the birds, but there are the times that eggs and materials stick on their feet and legs. This most often happens with ducks and their webbed feet.
700322
There is (Or was, it may be extinct.) a frog that\ntook its eggs into its mouth for brooding, and\nreleased fully formed small frogs when they had\ndeveloped.  However, the eggs were released in\nthe usual way from the cloaca before being taken\ninto the mouth.  There are marine animals, such as\nsea anemones which release their eggs through the mouth because they have no other opening.
867049
They dont, birds do. Humans can not catch a virus from birds tho, so there has to be a middleman (well pig). Birds give the virus to hogs, who then with a little twist of the virus give it to humans (hence the first name of swine flew). The best place for this to happen is a place that has both foul & pigs (a farm) so that is why you always hear about chickens & ducks (but it can be any bird).
358278
Some are hermaphroditic and self-fertilize their eggs, which they keep in their gills even after hatching until the young bear shells. Others are heterosexual and spew out eggs and sperm which unite and produce independent larvae that swim for a few weeks and then settle on a substrate. See ref.
56817
From my own personal exsperience and observation from working on a farm,yes they can. But please understand that this isn't real scentific lol\n\nThe female will lay eggs without the presence of a male. This is what we crack into the frying pan, un-fertalized eggs. These don't produce chicks.\n\nOn the other hand, having a male present seams to up production of eggs but you risk the eggs beeing fertalized. \n\nOn occation, when you crack an egg you will find a little red dot. This is simply where the egg was fertalized and the chick started devoloping.\n\nSomething even more rare to have happen, is the double yoke. You can determine what has happened here. Twins?\n\nYou can tell if the egg has been fertalized by testing it's waight number one, and number two by shining a light through it. We just simply hold them up to the light here on the farm if we think we may have a new chick on it's way. You can literatly see the baby forming inside of the shell, not with great detail, but it is intersting.
391527
They could. There were fish that evolved from swimming to walking. There is a fish called the flying fish that can jumpfrom the water and glide through the air for a ways to escape predators. Follow the link to see a picture, its fins look very similar to wings.\n\n\nhttp://oceanlink.island.net/oinfo/biodiversity/flyingfish/flyingfish.html