There are four images which rotate every 5 seconds. Name the birds and match them to their behavior or fun fact.

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1. Despite its tropical sounding name, this warbler lives farther north than most other warblers. It breeds far to the north in Canada, and winters primarily in the southern United States and northern Caribbean.

2. This warbler sings two basic song types: one is accented at the end (the pleased-to-MEETCHA song), and the other is not. The accented songs are used primarily to attract a female and decrease in frequency once nesting is well under way. The unaccented songs are used mostly in territory defense and aggressive encounters with other males. Some males sing only unaccented songs, and they are less successful at securing mates than males that sing both songs.

3. This warbler is considered a short-distance migrant, moving from its breeding areas in the western United States only as far south as Mexico. Migrating warblers follow mountain ranges and the Pacific coastline southward. Despite these landmarks, however, some get lost. A few turn up every year in the eastern states as vagrants.

4. Part of the fall migratory route of this warbler is over the Atlantic Ocean from the northeastern United States to Puerto Rico, the Lesser Antilles, or northern South America. This route averages 3,000 km (1,864 mi) over water, requiring a potentially nonstop flight of up to 88 hours. To accomplish this flight, it nearly doubles its body mass and takes advantage of a shift in prevailing wind direction to direct it to its destination.

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Answers:

Bird 1: Blackpoll Warbler--Fact 4
Bird 2: Black-throated Gray Warbler--3
Bird 3: Chestnut-sided Warbler--Fact 2
Bird 4: Palm Warbler--1