Variables determining the density and territory size of breeding spruce-woods warblers.
A deceived reed warbler hen will incubate the cuckoo egg along with its own.
If the rufous-capped warbler was foraging while standing upright, the manoeuvre was classified as standing.
Divergent foraging strategies of two neotropical migrant warblers: implications for winter habitat use.
There are 20 species of butterfly, nine species of dragonfly, and a variety of birds, including the relatively rare stonechat and grasshopper warbler.
Those of us who know anything about birds know that a willow warbler and a chiffchaff are identical until they open their beaks.
For example, why not schedule the whole class of warblers?
It is on the latter that we want to bring our influence to bear, those countries which expose for sale large numbers of small passerines and all the warbler tribe.
