Bluebird has only laid one egg and sit on it Do I remove the egg?

If the bluebird has only laid one egg, it is best to leave it alone. Bluebirds typically lay between three and five eggs in a single clutch, so it is possible that she will still lay more. If she does not, the one egg will not be viable and will eventually be reabsorbed by the bird's body.

By leaving the egg alone, you are giving the bluebird the best chance of successfully raising a brood of chicks. If you remove the egg, she may become distressed and abandon the nest.

Here are some tips for helping bluebirds nest successfully:

- Provide a suitable nest box. Bluebirds prefer nest boxes that are about 5 inches x 5 inches x 8 inches deep, with a 1.5-inch entrance hole. The box should be made of wood or another durable material and should have a rough interior so the chicks can climb out.

- Place the nest box in a suitable location. Bluebirds typically prefer to nest in open areas, such as fields, meadows, and orchards. The box should be placed 5-10 feet off the ground and should be sheltered from the wind and rain.

- Monitor the nest box. Once the bluebirds have started nesting, you should monitor the box to ensure that they are not disturbed. If you find that the nest has been abandoned, you can remove the egg and clean the box.

By following these tips, you can help bluebirds nest successfully and raise a brood of chicks.