I claim the ornamental design for a festive duck billed hat, as shown and described.
FIG. 1 is a perspective view of the festive duck billed hat, shown upon the head of a wearer, with the conical peak shown in a relaxed loose position;
FIG. 2 is a top right side perspective view of the festive duck billed hat, with the conical peak shown in an upright position;
FIG. 3 is a left side elevation view thereof;
FIG. 4 is a front elevation view thereof;
FIG. 5 is a rear elevation view thereof;
FIG. 6 is a right side elevation view thereof;
FIG. 7 is a top plan view thereof; and,
FIG. 8 is a bottom plan view thereof.
The depiction of the head of the wearer and the conical peak of the festive duck billed hat shown in dashed lines illustrate environmental structure. The bounds of the claim are shown in dash-dot-dot-dash lines. None of the subject matter illustrated in dashed lines forms a part of the claimed design.