What type of pliers are characterized by a squeezy handle, a bird mouth, and an opening to adjust size?

The correct answer is identified as tongue and groove pliers due to their distinctive features designed for versatility and functionality in various gripping tasks. Tongue and groove pliers feature a squeezy handle that allows for a strong grip and maneuverability, making them effective in applying force while grasping objects. The design includes a "bird mouth" shape, which helps in holding flat or large surfaces securely. The adjustable opening is a significant attribute, allowing the user to modify the jaw width to accommodate various sizes of objects, enhancing their utility in tasks that require different gripping sizes.

This adjustable jaw mechanism sets tongue and groove pliers apart from other types of pliers, as they are not limited to a fixed grip size, thereby making them suitable for a wide range of applications. This characteristic is particularly useful in plumbing and electrical work, where different pipe sizes and fittings may need to be handled.