Impression Evidence Impression evidence includes any markings produced when one object comes into contact with another, leaving behind some kind of indentation or print. Such evidence encountered includes footwear impressions, tyre marks, and markings created by tools and similar instruments. Footwear Impressions Whenever an individual takes a step, a footwear impression may potentially be left behind on the surface.
Invalid Hatch Boundaries. When a hatch boundary cannot be determined, it might be because the specified internal point is not within a fully enclosed area. Red circles are displayed around unconnected endpoints of the boundary to identify gaps in the hatch boundary. NoteIf a boundary is outside a screen display, you must zoom out to ensure the point selected is within a fully enclosed area.
Pairs may remain together all year, joining small flocks with other titmice in winter. Flocks break up in late winter, and pairs establish nesting territories. Male feeds female often from courtship stage until after eggs hatch. Breeding pair may have a helper, one of their offspring from the previous year. Nest site is in hole in tree, either natural cavity or old woodpecker hole; averages about 35' above the ground, ranging from 3' to 90' up. Unlike the chickadees, apparently does not excavate its own nest hole. Will also use nest boxes.