This Głowa strusia w piasku icon is made in Material Design style developed by Google. This style is based on extremely simplified shapes, thin two-pixel lines, and is optimized for 24x24 px. Unlike other vector icon packs that have merely hundreds of icons, this icon pack contains 4,300 icons, all in the same style and quality.
An ostrich head in the sand icon is shown with an ostrich with its head down. The ostrich head would not be shown because it is buried down in the sand. However, a person can tell that it is an ostrich by the length of its legs and neck, which is long.