1 (one) is a number. When you count, you start with one.
SESAME STREET MENTIONS
Falling Baker #1 - 1 penny, 1 bird, 1 wind-up toy, 1 cow, 1 belly button, 1 wedding cake.
The Count's Number Of The Day - When it's 1, one elephant shows up.
Jane Aaron's Number One Song (We're Talkin' 'Bout The Number One)
The number 1 muppet is the lead singer in A Chorus Line's One Singular Sensation.
Number Guy - 1 bird
Two kids count 1 duck.
Hortense - 1 drum
A group of number 1's chant "we're number one!"
Number Creatures - number 1 is a guy in the rain.
Fem Myror Cartoons: 1 alligator, 1 caterpillar, 1 fish, 1 snake, 1 whale (not brought to Sesame Street)
Rubber Stamps - 1 is a fish chef.
Abstract Count - 1 is a pineapple.