Friends of Marymoor Park

Marymoor Animal Sightings

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.

SPECIES JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC   TOTAL
Common Opossum (I) 2       1 1           1   5
Townsend's Mole ?                          
Coyote 1 4 4 3 3 1 1 3 4 3   2   29
River Otter 6 1 3 2 1 3 7 3 3 3 4 9   45
Long-tailed Weasel 3 4 3 3 8 14 6 7 4   3 2   57
Mink     1   1         3       5
Raccoon   2 2 3 4 1 5 5 2 2       26
Mule Deer     2 6 6 4 7 5 7 4 4     45
Mountain Beaver               1           1
Eastern Gray Squirrel (I) 32 24 35 31 30 30 26 36 34 37 34 28   377
Townsend's Chipmunk             1             1
Northern Flying Squirrel       1                   1
Beaver   2 1 3 2 2           1   13
Long-tailed Vole       ? ?       1   ?     1
Muskrat 8 6 11 8 10 13 11 11 5 4 5 2   94
Black Rat ?               ?            
Black-tailed Jackrabbit ?               ?            
Eastern Cottontail (I) 8 6 7 12 16 21 20 19 16 10 4 5   144
Pacific Tree Frog   2 5 1                   8
Bullfrog (I)     3 2 6 15 14 14   2       57
Painted Turtle (I) 1 3 7 16 17 11 10 12 13 4       94
Red-eared Slider (I)   3 9 15 18 11 9 12 20 9 4 1   111
Northwestern Garter Snake     9 10 12 11 6 15 6 8 1     78
Total by month 59 57 102 116 134 138 125 143 115 89 59 50   1187
(I) Introduced

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