This video from the USA says about itself:
Orange-crowned Warbler feeding on the ground
22 July 2015
Orange-crowned Warblers are fairly plain, yellow-green warblers with sharply pointed bills. The yellow feathers under the tail help distinguish this bird from the similar Tennessee Warbler. These birds can be seen in shrubs and woods across North America, but are more common in the West than in the East.
Reblogged this on perfectlyfadeddelusions.