No, birds do not have lips in the same way mammals do.
Bird Beaks vs. Mammalian Lips
Instead of lips, birds possess beaks, also known as bills. These beaks are made of keratin, the same protein that makes up human fingernails. The shape and size of a bird's beak are highly adapted to its diet and lifestyle. For example, a hummingbird's long, slender beak is perfect for sipping nectar, while a hawk's hooked beak is ideal for tearing flesh.
The reference provided highlights a key distinction: "In Birds and among REPTILES (specifically the Chelonia - or Testudines) beaks or bills take the place of lips and teeth." This clearly states that birds' beaks function similarly to the lips and teeth of mammals, but are structurally different. They lack the soft, fleshy tissue characteristic of mammalian lips.
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Key Difference: Mammalian lips are fleshy, muscular structures surrounding the mouth. Bird beaks are hard, keratinous structures that form the bird's mouth.
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Functional Equivalence: While structurally different, both beaks and lips serve the same fundamental purpose: food intake and manipulation.
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Evolutionary Adaptation: The evolution of beaks in birds is a remarkable example of adaptation to diverse feeding strategies.
