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Every species produces enough offspring to ensure the continuation of the species, under normal circumstances. An animal that produces relatively few offspring has a high survival rate - the odds of any one of the offspring surviving are good - and an animal that produces many offspring has a low survival rate - most of the offspring will die before reaching adulthood. The "few eggs" produced by a sparrow may be misleading, however. In most of their range, sparrows produce more than one clutch of eggs per year. So even though a sparrow may have only three or four eggs in her nest, she may lay more than a dozen eggs in the course of the spring and summer. Another possible consideration: Sparrows are often the victims of "nest parasites." I have often seen the nests of house sparrows holding only one egg, which was the egg of a brown-headed cowbird! The sparrow may have laid many eggs, but there was only one in the nest, as the cowbird removed the sparrow's eggs and laid her own for the sparrows to raise.
Wiki User
∙ 16y ago
Wiki User
∙ 13y agoSparrows have a low Infant Mortality Rate ( when eggs die before they hatch) threrefore ,they only need to lay 3 eggs and are likely to get 3 babies. However , a animal like a fish , which is at threat from other marine life, may lay a thousand eggs and only 2 live.
Anonymous
because they just do
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When do house sparrow lay eggs?
Yes, all birds lay eggs, that includes the sparrow.
How do sparrows feed their young?
They get low pressure on top of their wing and high pressure under neither if it was equal like high pressure on top and high pressure on the bottom it would not work.
DO fish lay eggs or give birth?
Most fish lay eggs. Depending on what type it is ... Some lay eggs and some give birth. When you get new fish and you already gave loads you don't know whether they're boy or girl so quite a few might give birth or lay gags.
Do male turtles lay eggs?
It is impossible for a male of any kind to lay an egg. So, No. thats not true they can lay eggs but they will be empty so.. YES they can
Why do clown fish lay so many eggs?
clown fish lay so many eggs because the eat them
When do house sparrow lay eggs?
Yes, all birds lay eggs, that includes the sparrow.
How many eggs do crabs lay?
Depending on the type of crab, it can lay from a few hundred eggs to a few million. For example, hermit crabs may lay up to 600 eggs, while blue crabs can lay up to 8 million eggs.
Why parasitic flatwormms lay thousands of eggs?
Most of the young will not survive to adulthood to lay their own eggs, so they lay thousands for a greater chance that a few--the strongest--will survive.
Why do snakes lay so few eggs?
maybe because they aren't extinct
When do water snails lay eggs?
They Lay There Eggs Just after a few days of begging pregnancy. Remember they can lay up to 200 eggs.
How do sparrows feed their young?
They get low pressure on top of their wing and high pressure under neither if it was equal like high pressure on top and high pressure on the bottom it would not work.
Do crows lay eggs?
Yes they are birds so they lay eggs.
DO fish lay eggs or give birth?
Most fish lay eggs. Depending on what type it is ... Some lay eggs and some give birth. When you get new fish and you already gave loads you don't know whether they're boy or girl so quite a few might give birth or lay gags.
Do male turtles lay eggs?
It is impossible for a male of any kind to lay an egg. So, No. thats not true they can lay eggs but they will be empty so.. YES they can
Do both reptiles and amphibians lay eggs?
Yes, Reptiles such as komelians lay eggs as do frogs. Frogs lay eggs and so do you, jks
Do millepedes lay eggs If so is it the male or the female who lays the eggs How many eggs do they lay at once?
Female millipedes may lay as many as 2,000 eggs, but a few hundred is more likely. THE FEMALE. the only animal that the male lays the eggs (which isn't entirely true because the female makes the egs then GIVES the eggs to the male) is the seahorse.
Do peacocks hatch from eggs?
Yes they do because when I had a female bird. The female will lay eggs after they mate. After that maybe a few months later... The female has a new eggs but watch out if one or more eggs are missing to bad for you :( so ya they do lay eggs
