Marymoor Animal Sightings
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| Beaver at the Rowing Club Pond. Photo by Ollie Oliver | Female Hooded Merganser
with Red-eared Sliders and Painted Turtle (closest). Photo by Ollie Oliver. |
Since about 1998, I've been noting the mammals, reptiles, and amphibians observed at Marymoor during my weekly birding surveys. This list is not as rigorous as my bird list, and my identification skills do not allow me to list all of the mammals smaller than a chipmunk. I'm afraid I haven't kept a list of insects or slugs, etc. The following table shows the number of times we've seen various species in each month of the year.
Table updated 12/31/2016:
| SPECIES | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC |
| Virginia Opossum (I) (2014) | 2 | 1 | 4 | 3 | 1 | 2 | 1 | 1 | 3 | |||
| Mountain Beaver (2008) | 1 | |||||||||||
| Eastern Gray Squirrel (I) | 62 | 52 | 71 | 62 | 63 | 60 | 55 | 69 | 66 | 71 | 63 | 61 |
| Douglas Squirrel (2011) | 2 | 1 | ||||||||||
| Northern Flying Squirrel (2003) | 1 | |||||||||||
| Townsend's Chipmunk (2003) | 1 | |||||||||||
| American Beaver | 5 | 8 | 5 | 12 | 13 | 9 | 12 | 6 | 1 | 1 | 3 | 11 |
| Long-tailed Vole (2011) | ? | ? | 1 | 1 | ? | |||||||
| Water Vole | 1 | |||||||||||
| Townsend's Vole (2010) | 1 | 1 | ||||||||||
| Muskrat | 10 | 11 | 17 | 20 | 24 | 20 | 21 | 21 | 10 | 9 | 6 | 4 |
| North American Deermouse (2010) | 1 | |||||||||||
| Roof Rat ? (2002) | ? | ? | ||||||||||
| Coypu (Nutria) (2014) | 1 | |||||||||||
| Eastern Cottontail (I) | 24 | 27 | 36 | 39 | 50 | 54 | 53 | 52 | 43 | 32 | 19 | 20 |
| Vagrant Shrew ? (2009) | ? | |||||||||||
| Townsend's Mole | ? | 1 | 2 | 1 | 2 | 2 | ||||||
| Shrew-mole (2009) | 1 | |||||||||||
| Bat spp. | 2 | 2 | 1 | 1 | ||||||||
| Bobcat (2013) | 1 | 1 | 1 | 1 | ||||||||
| Coyote | 10 | 10 | 8 | 8 | 6 | 3 | 4 | 9 | 11 | 7 | 11 | 13 |
| Black Bear (2015) | 1 | |||||||||||
| River Otter | 12 | 9 | 5 | 6 | 2 | 4 | 8 | 5 | 6 | 8 | 9 | 13 |
| Long-tailed Weasel | 4 | 3 | 6 | 8 | 14 | 23 | 14 | 14 | 4 | 3 | 3 | 2 |
| Mink (2015) | 1 | 1 | 1 | 1 | 2 | 3 | 3 | |||||
| Raccoon | 3 | 4 | 5 | 7 | 3 | 10 | 7 | 2 | 4 | 3 | ||
| Mule Deer (Black-tailed Deer) | 3 | 11 | 19 | 17 | 16 | 11 | 17 | 14 | 9 | 3 | ||
| Long-toed Salamander (2013) | 1 | |||||||||||
| Northwestern Salamander (2016) | 1 | 1 | ||||||||||
| Pacific Tree Frog | 1 | 6 | 18 | 8 | 3 | 1 | 5 | 7 | 6 | |||
| Bullfrog (I) | 1 | 3 | 3 | 11 | 27 | 31 | 26 | 4 | 3 | |||
| Painted Turtle (I) | 1 | 3 | 14 | 36 | 27 | 17 | 15 | 16 | 15 | 4 | ||
| Red-eared Slider (I) | 1 | 13 | 28 | 38 | 43 | 26 | 25 | 25 | 41 | 22 | 9 | 3 |
| Puget Sound Garter Snake | 3 | 8 | 7 | 7 | 10 | 16 | 10 | 9 | 1 | |||
| (I) Introduced | ||||||||||||