Search for tag: "woodpeckers"

29:07 Auth 0511 David Spector and Sylvia Halkin part 2 Auth 0511 David Spector and Sylvia Halkin part 2	Auth 0511 David Spector and Sylvia Halkin part 2 education and upbringing vertebrates woodpeckers schools university & college new england research birdwatching massachusetts animal ornithology marsh warbler books literature sylviidae birds nature From Ryan Wark A year ago 6 views 0
28:56 Auth 0510 David Spector and Sylvia Halkin pt 1 Auth 0510 David Spector and Sylvia Halkin pt 1	Auth 0510 David Spector and Sylvia Halkin pt 1 ornithology birdwatching woodpeckers music sylviidae birds mockingbird vertebrates research singing and singers small birds passerine birds cardinal marsh warbler animal From Ryan Wark A year ago 5 views 0