This included Adder, Weasel, Owl and Kestrel, who retained the markings of a male kestrel. Many eagles, harriers, falcons, buzzards, kestrel and vultures are spotted here. One can see eagles, harriers, falcons, buzzards, kestrel and vultures. The Plover, Falcon and Kestrel machines followed. Avians include the American kestrel, Reddish egret and spoonbills. There are many birds of prey such as lesser kestrel and buzzards. Black-shouldered kites spiral into the wind like a kestrel. Hawking with the American kestrel requires adapting to the strengths and weaknesses of the bird. Wraith fighter and the Kestrel attack helicopter. The sixth edition of the AOU Checklist corrected this, officially renaming the bird "American kestrel". The back and wings of the female American kestrel are rufous with dark brown barring. It is also known as the European kestrel, Eurasian kestrel, or Old World kestrel. Other species have more restricted distributions, particularly island endemics like the Mauritius kestrel. These were developed directly from the Hawker P.1127 prototype and the Kestrel evaluation aircraft.