Bluebirds

They la 4-6 eggs per nest.

Blue jays are birds, not mammals. Only mammals nurse, or provide milk for their young. However, blue jays do take care of their hatchlings, and feed them regurgitated food.

Yes, they eat small worms.

Male Mountain Bluebirds lend a bit of cerulean sparkle to open habitats across much of western North America. You may spot these cavity-nesters flitting between perches in mountain meadows, in burned or cut-over areas, or where prairie meets forest-especially in places where people have provided nest boxes. Unlike many thrushes, Mountain Bluebirds hunt insects from perches or while on the wing, at times resembling a tiny American Kestrel with their long wings, hovering FLIGHT, and quick dives.

Perhaps a few but most will go south to more of the southeastern US.

Normally they are a sky blue color, but sometimes white clutches are found.

No. They make a new one for each brood but if you take out the old nest after the young have left the nest they may make a new in that birdhouse.

In the United States there are three species of Bluebirds: Eastern, Western, and Mountain. All three nest in cavities (holes) in tree that are normally crated by woodpeckers. Originally, Eastern Bluebirds were very common across the eastern half of the US, but with the introduction of European Starlings who aggressively takeover nesting holes, their population has rapidly declined.

To help bluebird populations, many people and organizations began building bluebird houses. These bluebird houses have openings that are the exact size of bluebirds and sometimes have wire tubing at the entrances that discourage other birds (like Starlings) from nesting there.

Bluebirds nest in tree cavities, or in man made bluebird boxes. The box should have an entrance hole no more than one and a half inches, and have a hinged roof for cleaning. It shoud be placed no more than five feet above ground, to exclude sparrows.

The birds are establishing their territorial rights for mating season. They are reacting to the bird reflected in the window.

Clean them once the bluebird abandons the nest; usually after the babies leave the nest. If a sparrow or other bird starts making a nest over the current bluebird nest remove the materials of the nest in process. Do not clean out the bluebird house if the bluebird is still using the nest.

Bluebirds need water, air, and food. They also need a place to make nests and reproduce.

their gills

Considering the meaning of herbivore, Yes, bluebirds are herbivores. They eat not only insects, but also relish fruit.

Existing records suggest that bluebirds can live up to 10 years in the wild, although the average life span is 3 to 7 years.

In some places they migrate and in others they stay the whole year.

It will take an estimated 18 days for a blue jay egg to hatch. The baby blue jays will leave the nest when they are near 21 days old.

Great Blue Herons, along with all other birds and mammals, reproduce sexually. Even worms have to have another partner in order to reproduce. They simply store the sperm they receive from the other worm for later use.

Not really. Bluebirds eat a lot of insects, but they also relish fruits.

The scientific name of the eastern bluebird is Sialia sialis.

Yes, usually powder blue. In rare occasions they are white.

If the eggs have been left untended for more than 24 hours they most likely are or will die.

Parasitism- one organism is benefitted and the other is harmed

Typically in 16-21 days after they have hatched.

Their blue color stands out from other birds.