why is Robins nest is better than a crows nest?
Answers
heya...!!!
your required answer is given...!!!
not like the crow. A crow's nest is made ... I saw a baby bird in the robin's nest. It was sitting ... the one that she likes the best and decides in which to lay her eggs.
hope this helps..!!!
Answer:
Explanation:
Will the male robin take over the nest if the mother cannot?
A. If the female was killed, the eggs are doomed. The male doesn’t have a brood patch and doesn’t know how to brood eggs. If it was the male who died, the female might continue to incubate, but may just give the nest up for lost because the chances of bringing off more than one or two nestlings is very slight with just her to feed them. Also, the female starts focusing on a new batch of eggs after the young fledge, so the father is quite essential for the ‘finishing school’ lessons on surviving.
Q. Is it common for a robin to build more than one nest at a time?
A. This is a question we hadn’t been asked before, so we wrote to Len Eiserer, the author of The American Robin: A Backyard Institution. Len answered,
Building multiple nests simultaneously happens every now and again with robins. One started 26 different nests on roof rafters of a garage under construction; another built 8 on successive steps of a fire escape. Support from underneath is the primary site selection factor for the female robin — it’s more important than concealment. Because some human structures provide repetitive sites with strong support, the female can get seduced into building multiple nests.
This is an example of “supernormal stimuli” — artificial stimuli that are even more effective than those provided by Mother Nature (tree limbs). Animals have a hard time resisting supernormal stimuli. There are many examples. Your robin will probably settle on one site and just lay eggs in that nest, or else just incubate eggs in that nest after laying, say, one egg in one nest and two in the other. She won’t lay two complete sets of eggs and try to incubate both of them at the same time.
Q. Will a blue jay steal eggs from a robin’s nest?
A. The main predators of robin eggs are snakes, squirrels, blue jays, and crows. Deer eat a lot of bird eggs and nestlings, too, but only from ground nests.
Q. What can we do with the robin egg we found in our yard?
A. The best thing to do with an egg that you find is to simply leave it be. I know you’re concerned about the little baby growing in it, but there is a strong chance that there may not even be a baby in there. This may be an egg that wasn’t fertilized, or didn’t develop properly. After the other babies are a day or two old, the parents get rid of unhatched eggs just in case one of the growing babies accidentally crushes it. Rotten eggs are no fun!
Even if the egg were perfectly healthy, the chance of a human successfully incubating the egg and then successfully raising the baby from a hatchling is VERY remote. Robin eggs require high humidity, gentle daily turning, and level heat. You’d need a high-quality incubator to do it properly. Then once the babies hatch, parent robins feed them regurgitated worms and insects for the first three or four days—something humans just can’t do!. Newly hatched robins are weak and helpless, and their parents are designed precisely and have the exact right instincts for taking care of them. Our human hands are clumsy, and we have too many other concerns in our daily lives to devote every waking moment to a baby robin, as its real parents would do naturally.
There are very good reasons why it is against state and federal laws in the US to raise wild baby birds. Death at the hands of well-meaning people who aren’t feeding a robin nestling the proper diet can be painful for the baby. Far, far better to just allow the egg to cool. If a baby is still alive in there, it will simply stop developing within the egg, before it develops any awareness of pain.
Q. How long does it usually take a robin to build a nest?
A. It takes two to six days for robins to build their nest.
Q. Does the female robin live someplace separate from the nest she is building?
A. Remember that the nest is not a bed; it’s an incubator and baby cradle, so the robin isn’t supposed to be on the nest at night until she has a full clutch of eggs. Until then, she roosts on a branch.
Q. Should we try to raise abandoned eggs ourselves?
A. Robins only abandon their eggs when something happens that tells the robins they will have a poor chance of success. It seems unlikely that humans will have greater success. I know how sad it is to see these beautiful eggs and how very tempting it is to want to save the tiny babies inside. But it’s just as heartbreaking to watch the babies start out healthy, with their egg sac to provide some nutrition for a couple of days, and then wither and die at our hands.