She's not British. She's as much Canadian or Papua New Guinean or Jamaican as she is British.
The lion is a great symbol of Britain, of course. The England football team's crest has three lions on it, which was also England's royal crest until it ceased to be a nation state in 1707.
North American wildlife puts European wildlife to shame.
European wildlife is much nicer than North American wildlife.
What IS a shame are those bloody North American grey squirrels which have now colonised much of Britain and which are nothing but pests which are damaging the woodland areas which are the only habitats of Britain's much better looking red squirrels, which is causing them to be dying out.
The American Robin is part of the thrush family.
The European Robin is part of the old world fly catcher family.
In conclusion... the American Robin kicks azz!
.... and it is a robin!
Actually, the European robin is the true robin, not the American robin. The American robin is named after the European robin, despite not being related to it. It was English settlers - those who would later found the USA - who saw a red-breasted bird there and named it after the European robin. The European robin was called a robin long before North America was even discovered.