Flamingos build nests that look like mounds of mud along waterways. At the top of the mound, in a shallow hole, the female lays one egg. The parents take turns sitting on the egg to keep it warm. After about 30 days, the egg hatches. Flamingo young are born white, with soft, downy feathers and a straight bill.
The first digit of a UPC-A Barcode is number system character. The following table shows you what different number system characters mean. 0: Standard UPC number 1: Reserved 2: Random weight items (fruits, meat, vegetables, etc. 3: Pharmaceuticals
The UPC symbol also has a check digit which is the last digit of the code and is calculated according to the algorithm used for EAN. As with EAN, UPC is described in terms of magnification factor as a percentage. The 100% code is the same size as a 100% EAN.