It does need a bettery, depending on the model number it may come with a supplied battery.
Yes, the birhouse has a bettery so it does not need wires.
If you want to watch the birds you may enjoy having the camera too.
most small birds will use the nature show houes, such as sparrows and sterlings.
You should decide what bird you want to attract and plant food that they like.
Yes birds do not seem to mind different colors some even prefer red or orange.
Yes it is a color camera.
It has a standard video cable to attach to a TV.
The light sensor in a digital camera, known as a Charge-Coupled Device (CCD), is photoelectric in nature and does not produce energy via chemical means. However, virtually every digital camera uses a battery to power it, which is electrochemical in nature, producing electricity from chemical energy stored in the battery's cells.
Yes it has infrared which allows you to see it work in the dark.
Even if you are using a Nature Cam, you'll still need to give the birds food if you want them to stay around.
You can find information about robins nesting in your area by contacting local birdwatching groups, visiting nature centers, or checking online resources such as birding websites or apps. Additionally, you can observe your surroundings for signs of robins nesting, such as seeing them carrying nesting materials or hearing their distinctive calls.
The Hawk Eye can be used outdoors or in a bird cage, and does come with weather shielding.