For recordings of bird songs, call 612-673-7800; when prompted press the following four-digit numbers:
1213 blue jay
1214 carolina wren
1215 Northern mockingbird
1216 pine siskin
1217 ruby-throated hummingbird
1218 white-winged crossbill
From the Library of Natural Sounds, Cornell Laboratory of Ornithology.
Try the lab's website: www.birds.cornell.edu.
We apologize for the inconvenience.