The ornamental design for a chickencoopwindow, as shown and described.
FIG. 1 is a front right perspective view of a first embodiment of a chicken coop window showing our new design;
FIG. 2 is a front elevation view thereof;
FIG. 3 is a rear elevation view thereof;
FIG. 4 is a left side elevation view thereof;
FIG. 5 is a right side elevation view thereof;
FIG. 6 is a top plan view thereof;
FIG. 7 is a bottom plan view thereof;
FIG. 8 is a front left perspective view thereof, showing the window in an open position; and,
FIG. 9 is a front elevation view of a second embodiment of a chicken coop window showing our new design.
The broken lines shown in FIGS. 1-2 and 4-9 are included for the purpose of illustrating environmental material and form no part of the claimed design. The oblique shading in FIGS. 1-3 and 8-9 represents a transparent surface.