Squirrelly Squatter

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It is extremely cold outside the last couple days, and creatures are looking for refuge where ever they can.  This particularly enterprising individual took up residence in an old birdhouse at the corner of our patio.  I wonder if he is going to file a homestead exemption?  I wonder if he realizes I am replacing his abode come springtime? And most importantly,  I wonder why did he split the blanket with Bullwinkle?