Approximately 55,000 people visit the sanctuary and public areas of the Cornell Lab each year.

The Cornell Lab of Ornithology has multiple ways for people to learn more about birds.

From its earliest days, the Cornell Lab has had a special interest in bird and animal sounds.

If we were like most mammals, he suggested to me, the Cornell Lab would be putting out a collection of smells.

Dr. Jackson says that a blue jay could possibly have made the calls, something the Cornell Lab agrees with.

The Cornell Lab stands by its original statement, and searches are planned for other states, as well.

Cornell Lab of Ornithology website with video and sound files.

The sample appears to be taken from the Cornell Lab of Ornithology's online media archive.

John Fitzpatrick, head of the Cornell Lab, said in an interview that the sounds were clearly gunshots.

The Cornell Lab invites participants to fill out a questionnaire, and those who do receive a variety of information, including details on membership.