Personalized Nerd Birdwatcher Blue Long Sleeve Creeper. Funny Long Sleeve Creeper - Natural for birders, birdwatchers and twitchers for their Big Day or Big Year with binoculars and bird graphic says This Nerd Watches Birds. For chillier weather, dress baby in this soft long sleeve creeper in a great fitting 1x1 baby rib. 5.0 oz., 100% combed ringspun cotton, 1x1 baby rib. White is sewn with 100% cotton thread, Flatlock seams, Double-needle stitched rib binding on neck, shoulders, sleeves and leg openings,Reinforced three-snap closure on binding.