Vanellinae are any of various crested plovers, family Charadriidae, noted for its slow, irregular wingbeat in flight and a shrill, wailing cry. Its length is 10–16 inches. They are a subfamily of medium-sized wading birds which also includes the plovers and dotterels. The Vanellinae are collectively called lapwings but also contain the ancient red-kneed dotterel. A lapwing can be thought of as a larger plover. The traditional terms "plover", "lapwing" and "dotterel" were coined long before modern understandings of the relationships between different groups of birds emerged: in consequence, several of the Vanellinae are still often called "plovers", and the reverse also applies, albeit more rarely, to some Charadriinae (the "true" plovers and dotterels). In Europe's Anglophone countries, "lapwing" refers specifically to the northern lapwing, the only member of this group to occur in most of the continent and thus the first bird to go by the English name 'lapwing'.