penguin
penguin puffin pelican
pigons
a pidgin
The swimming bird that cannot fly and whose name begins with letter P is Penguin. As your question also states 'what are some birds that begin with letter P, so some common such birds are Peacock, Peahen, Peafowl, Pelican, Pheasant,Parakeet and Parrot.
Pluto and planets are sky words. They begin with the letter p.
Panther, python and polar bear are wild animals. They begin with the letter p.
To find sites that begin with the letter P, type this into your search engine: www.p*.
Some nuts that begin with the letter P are: pecans pistachios pine nuts peanuts
Prison, post office and police station are types of buildings. They begin with the letter p.
Pacific Life, Penn Mutual and Prudential are insurance companies. They begin with the letter p.
Perfect is a superlative. It begins with the letter p.
Porsche and Publix have websites that begin with the letter p.