source : yahoo.com
Why don’t birds interbreed? Why don’t we see a robin-bluejay mixture?
The Robin ( Turdus migratorius) is a migratory songbird of the thrush family, the Blue Jay (Cyanocitta cristata) is a passerine bird. They are two completely different species. Yes, the eggs would be sterile if they did somehow mate, which to my knowledge they don’t. It would be like a human mating with a spider monkey, lol.
edit: Well Cal King has a better answer for you. I kind of just copied and pasted out of wikipedia to make myself sound like an expert hah. But considering they aren’t even of the same genus, I doubt they could hybridize.
Dealing with smart and spirited Blue Jay, for better or worse – Blue Jays are more standoffish than our three scrub-jays and Gray Jay. Those species require more meat, which they often steal from large mammals. All jays raid nests, but unlike most birds, Blue Jays do so primarily to feed an incubating mate or growing young, rather than for their own meals.Blue Jays have earned a bad reputation with some wild bird enthusiasts. These large and sometimes "bully" songbirds have been known to kill hatchlings, empty feeders quickly and then demand more bird food in a noisy and obnoxious way. With this in mind, you may wonder why anyone would want Blue…The company is promoting this development by stating that nuclear power does not produce pollutants .
What Bird Feeders do Blue Jays like? • BirdHouseSupply.com – I have heard the blue are more difficult but after 2+ months none have even berried. All will interbreed giving you more and more wild type shrimps. Maybe they're younger than other shrimps?Modern humans and neanderthals DID interbreed. Bradley posited that because Neanderthal were unattractive to white Cro-Magnons, and in fact their hooked nose looked sinister to them, virtually all interbreeding was by rape.Thousands of years ago, the reptilian beings [from the constellations Orion, Sirius, and Draco] intervened on planet Earth and began interbreeding with humans. Not physically, however, but rather through the manipulation of the human coding, or DNA.
blue jays and robins do not interbreed. assuming that… – Brainly.com – The theory is that blue jays in the Northeast and Eastern Canada may collect and cache calcium in anticipation of increased needs in nesting season. How the blue jays figured out the paint-chemistry connection seems to be unknown, as is how they knew those eggshells were on their grocery list.How do you raise a blue jay as a pet? Why do blue jays eat other birds? Could a raven defeat a hawk in a fair fight? Which bird is stronger? A robin laid an egg on my backyard on the ground. How can I safely relocate the eggs so they do not get stepped on by a dog/cat while still allowing the robin to…In one study, for example, blue jays raised with robins could distinguish robins from one another better than the robins themselves could distinguish among other robins. Do you think that these two species might differ from one another in the occurrence of reciprocal altruism?