What are the similarities between the Bush Stone-Curlew (Burhinus grallarius) and the Eurasian Stone-Curlew (Burhinus oedicnemus)?
The Bush Stone-Curlew and the Eurasian Stone-Curlew are also called the Thick-Knee. They are both related to the Bustard.
The Bush Stone-Curlew and the Eurasian Stone-Curlew are both ground-dwelling, nocturnal birds.

Bush Stone-Curlew (left) and Eurasian Stone-Curlew (right)
The Bush Stone-Curlew and the Eurasian Stone-Curlew are both categorized as wading birds and wetlands birds, but they both like dry open areas.
Both the Bush Stone-Curlew and the Eurasian Stone-Curlew have a long neck and a thick, triangular-shaped, grey beak.
The Bush Stone-Curlew and the Eurasian Stone-Curlew both have grey, brown, black and white plumage that blends with their environment.
But, the Bush Stone-Curlew is native to Australia, and the Eurasian Stone-Curlew is native to Europe, north Africa, and south-west Asia.

Bush Stone-Curlew

Bush Stone-Curlew

Eurasian Stone-Curlew
Photographer: Martina Nicolls
Martina Nicolls: SIMILAR BUT DIFFERENT IN THE ANIMAL KINGDOM