For recordings of bird songs, call 612-673-7800, and when prompted press the following four-digit numbers:
1213 Canada warbler
1214 hairy woodpecker
1215 mountain bluebird
1216 orange-crowned warbler
1217 orchard oriole
1218 red-winged blackbird
1219 rock dove (pigeon)
Recordings from the Library of Natural Sounds, Cornell Laboratory of Ornithology. Try the lab's website: www.birds.cornell.edu.