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The olive warbler is a medium-sized warbler, 13 to 14 cm (5.1–5.5 in) in length and weighing 9.5 to 12 g (0.34–0.42 oz). It shows clinal variation in size, with more northern populations being larger than southern ones, a phenomenon known as Bergmann's rule. [6] The olive warbler is a long-winged bird.
This small passerine bird is a species found in open-canopy oakwoods, olive groves, orchards and almond plantations. Three or four eggs are laid in a nest in a low tree or a bush. This is a medium-sized warbler, similar to in size to the barred warbler, with a slightly longer bill and shorter tail.
The western olivaceous warbler differs from this species in being larger and having a browner tinge to the upperparts; it also has a larger bill. The eastern olivaceous warbler sometimes has a greenish tinge to its upperparts, and can be very difficult to separate from Sykes's warbler, Iduna rama. The song is a fast nasal babbling.
A garden warbler (Sylviidae), giving its prolonged warbling song A wood warbler (Phylloscopidae) A magnolia warbler (Parulidae) Various Passeriformes (perching birds) are commonly referred to as warblers. They are not necessarily closely related to one another, but share some characteristics, such as being fairly small, vocal, and insectivorous.
Hooded Warbler in Audubon's Birds of America. The hooded warbler is a small bird and mid-sized warbler, measuring 13 cm (5.1 in) in length and weighing 9–12 g (0.32–0.42 oz). [13] The hooded warbler has a wingspan of 6.9 in (17.5 cm). [14] It has a plain olive/green-brown back and yellow underparts. Their outer rectrices have whitish vanes ...
It is a small passerine bird, found in dry open country, including cultivation, with bushes or some trees. Two or three eggs are laid in a nest in low undergrowth or a bush. Like most warblers, the western olivaceous warbler is insectivorous. It is a medium-sized warbler, more like a very pale reed warbler than its relative the melodious ...
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The taxonomic treatment [3] (designation and sequence of orders, families and species) and nomenclature (common and scientific names) used in the accompanying bird lists adheres to the conventions of the AOS's (2019) Check-list of North American Birds, the recognized scientific authority on the taxonomy and nomenclature of North America birds.