Beak and bill are synonyms. The beak or bill may also be called a rostrum. These terms refer to an external anatomical structure common to all birdswhich may be used for:
bills (a beak is sharp where as a bill is is usually flat like a duck or a plattypuss)
the ducks only get leathery beeks when the have sex. The sex hormonesmake the beak go all leathery and the females beak slimmey
bird bills are like a chin bird beaks are the top of a bird's mouth
they have bills.
NO they definitely can not. There beaks are way to small and fragile. The beak would break on contact.
they have duck bills/beaks
Bills or beaks suitable for kinds of food they eat. Some birds like Eagles have hooked beaks to tear the flesh of their prey ; some birds have short,thin beaks to capture insects ; and some birds have short, thick beaks to open seeds. some birds have even long,thin beaks for probing flowers for nectar or searching the soft mud for worms and shellfish.
Well I think it is the chisel bills or the spear bills KEY bills=beaks
Different terms for the same body part.
If the band at the top of the beaks are the same then chances are good they are the same.
A bird's beak is evolved for the sort of food the bird eats. For example, birds who eat hard seeds have strong beaks to crack them open. Birds who drink flower nectar have long skinny beaks to fit inside the flowers.
feeding strategies
A reading material that discusses the beaks or bills of five different birds from specific perspective of feeding habits. The primary method of birds to secure food is through their beaks or bills.
'las cuentas' is the (usual) word for bills that you pay; but there are many meanings of 'bills' - the beaks of birds; he/she bills (i.e. charges); handbills.... You need to be more specific.