"resambles" - 1 õppematerjal

Tundra swans

female incubates ● 4 to 7 eggs  Influence of whooper swan ● Much admired in Europe ● National bird of Finland ● Protected species in Estonia Spread  Bewick´s swan (väikeluik) ● Lenght 115 to 140 cm ● Adults – white all over ● Young birds – greyish with a pinkish bill ● Shorter neck, variable bill pattern ● Showing more black than yellow ● Bill is more yellow than black ● Europe, Asia, North America ● Resambles more of a goose than swan ● Estonia – one of the main transit regions for migrating ● Most numerous migratory swan in Estonia  Mute swan (kühmnokk-luik) ● Large swan typically range from 140 to 160 cm ● Males larger than females and have a larger knob on their bill ● One of the heaviest flying bird ● Young birds, called cygnest, are not the bright whiteof mature adults, and their bill is dull greyish-black (not orange for the first year)