For recordings of bird songs, call 612-673-7800, and when prompted press the following four-digit numbers:
1205 American goldfinch
1206 brown thrasher
1207 hoary redpoll
1208 hooded warbler
1209 Western tanager
1210 Northern mockingbird
Recordings from the Library of Natural Sounds, Cornell Laboratory of Ornithology. Try the lab's website: www.birds.cornell.edu.
