0 the cape may warbler (setophaga tigrina) is a species of new world warbler .
1  it breeds in northern north america .
2  its breeding range spans all but the westernmost parts of southern canada , the great lakes region , and new england .
3  it is migratory , wintering in the west indies .
4  this species is a very rare vagrant to western europe , with two records in britain as of october 2013. the english name refers to cape may , new jersey , where george ord collected the specimen later described by alexander wilson .
5  this species was not recorded again in cape may for another 100 years , although it is now known as an uncommon migrant there .
6 this bird is a small passerine and mid-sized new world warbler .
7  length can vary from 12 to 14 cm (4.7 to 5.5 in), wingspan is 1922 cm (7.58.7 in), and body mass can range from 9 to 17.3 g (0.32 to 0.61 oz) .
8  among standard measurements , the wing chord is 6.1 to 7.3 cm (2.4 to 2.9 in), the tail is 4.3 to 5 cm (1.7 to 2.0 in), the bill is 0.9 to 1.2 cm (0.35 to 0.47 in) and the tarsus is 1.7 to 1.9 cm (0.67 to 0.75 in) .
9  the summer male cape may warbler has a brown back , yellowish rump and dark brown crown .
10  the underparts are yellow , streaked black , giving rise to the bird's scientific name .
11  the throat and nape are bright yellow and the face is striking chestnut with a black eyestripe .
12  there is a narrow white wing bar .
13 other plumages resemble washed-out versions of the alternate-plumaged male's , lacking the strong head pattern .
14  the yellowish rump and at least indications of the white wing bar are always present .
15 this species is insectivorous and lays larger clutches in years when spruce budworm is abundant .
16  it picks insects from the tips of conifer branches or flies out to catch insects .
17  the cape may warbler also feeds on berry juice and nectar in winter , and has , uniquely for a warbler , a tubular tongue to facilitate this behavior .
18 the breeding habitat of this bird is the edges of coniferous woodland .
19  cape may warblers nest in dense foliage near the trunk of the tree , commonly a black spruce , and lay 49 eggs in a cup nest .
20  this species can lay the largest clutch of any new world warbler , probably in response to increases in the numbers of spruce budworm during outbreaks .
21 the song of the cape may warbler is a simple repetition of high tsi notes .
22  the call is a thin sip .
23  this bird usually sings from high perches .
