baybreasted warbler (Dendroica castanea)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CONFIRMATION STATUS: Confirmed.

 

IDENTIFICATION:

• Length: 4.75 inches

• small, active, insect-eating bird

• White wing bars

• Thin, pointed bill

• White spots visible on underside of tail

• Black legs

Adult male alternate:

• Brown crown, upper breast and sides

• Black face

• Buffy patch on side of neck

• Whitish underparts

• Female in alternate plumage similar to male but duller with reduced             rust on sides

Basic and immature:

• Greenish crown, nape and back with thin black streaks

• Indistinct supercilium

• Breast somewhat paler than upperparts

• Creamy belly and undertail coverts

• Some rust may be present on sides

Similar species:

In alternate plumage, the only other warbler with rusty sides is the
chestnut-sided warbler but it has a yellow crown and white throat.
Basic (fall) and immature plumages are very dull and most similar to
blackpoll and pine warblers. The blackpoll warbler has yellow legs,
white undertail coverts, and a streakier breast. Pine warbler lacks
black streaks on the back and is often yellower on the throat and
breast. Often, bay-breasted warblers retain a trace of rusty sides
in the fall.

 

LIFE HISTORY

Migration Status: Neotropical migrant
Breeding Habitat: Woodland
Nest Location: Mid-story/canopy nesting
Nest Type: Open-cup
Clutch Size: 4-7
Length of Incubation: 12-13 days
Days to Fledge: 11-12
Number of Broods: ?
Diet: Primarily insects; lesser quantities of fruit

 

SKY MEADOWS DISTRIBUTION/SEASONAL OCCURRENCE

 

Relative abundance and seasonal occurrence are indicated in red below.

 

Relative abundance
     C - Common: Likely to be present in good numbers in appropriate habitat and season.
     U - Uncommon: May be present in appropriate habitat and season, often in low
            numbers.
     O - Occassional: Found in appropriate habitat perhaps only a few times per season,
            sometimes low numbers.
     R - Rare: May not be recorded every year.
     Acc - Accidental: Recorded once or twice, may not be expected again for a long time.

 

Seasonal Occurrence
      Sp - Spring: March, April, May R
      Su - Summer: June, July, August
      Fall: September, October, November R

      Winter: December, January, February

 

 

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