Camera containing a linear image sensor; Electromechanical devices for preventing squirrels and other animals from accessing bird seed in feeders; Hand-held electronic units used to identify bird species and bird songs; Remote video monitoring system consisting primarily of a camera and video monitor for recording and transmitting images to a remote location; Wireless communication devices for transmitting images taken by a camera; Downloadable computer application software for mobile phones, portable media players and handheld computers, namely, software for monitor the situation of the birds; Downloadable software in the nature of a mobile application for monitoring the situation of the birds