00:00Deep in the heart of the forest where sunlight filters through green canopies,
00:05a delicate voice fills the air. The song of the black-throated green warbler,
00:11this tiny bird with its striking yellow face and a bold black throat is a master of melody
00:17in the treetops. Its tune is soft, sweet and endlessly repetitive, almost like nature's
00:25on Whispering Lullaby.
00:55The song of the black-throated green warbler is often described as ZZ. Each notes flow
01:13effortlessly into the next, a tune that carries across the forest like a calm morning breeze.
01:25But for this warbler, singing is more than beauty. Male uses their songs to mark their territory and
01:50attract females, filling the woods with cheerful notes that echo through the trees during spring and summer.
02:20Here we go.
02:26Everybody gets to know about the tree in the sea.
02:30They're still showing up in the tree in the air.
02:34So, we need to have a deep part of the bird, we need to get to know about the tree in the sea,
02:40and then we need to get to know about the stars and the valley.
02:44Let's go.
03:14Let's go.
03:44Let's go.
04:14Let's go.
04:44Let's go.
04:46You can often hear their song long before you spot them.
04:50These little vocalists prefer to stay high in the canopy, hoping from branch to branch
04:56their olive green backs, blending perfectly with the leaves.
05:01When you finally catch a glimpse, their black throat and bright yellow cheek stands out
05:06like brush strokes of sunlight against shadow.
05:11Let's go.
05:17Let's go.
05:19Let's go.
05:27Let's go.
05:29Let's go.
05:31Let's go.
05:37Let's go.
05:39Let's go.
05:41Let's go.
05:43Let's go.
05:51Let's go.
05:53Let's go.
05:55Let's go.
05:59Let's go.
06:05Let's go.
06:07Let's go.
06:09Let's go.
06:11Let's go.
06:13Let's go.
06:15Let's go.
06:19Let's go.
06:21Let's go.
06:23Let's go.
06:25Let's go.
06:27Let's go.
06:29Let's go.
06:31Let's go.
06:33Let's go.
06:35Let's go.
06:37Let's go.
06:39Let's go.
06:41Let's go.
06:43Let's go.
06:45Let's go.
06:47Yes.
06:59Yes.
07:11Yes.
07:17What's truly fascinating is how their songs can change depending on where they live.
07:34In northern forests, the song sounds sharper and shorter, while in southern ranges, it's softer and more drawn-out.
07:43A regional ascent in the language of birds.
07:47What kinds of sounds are they?
07:49?
07:51What is in this country?
07:53What's in this country?
07:55What about eles?
07:57How do they even show themselves?
07:59They take away their voices that they live in less than 20 seconds, and then take away their voices.
08:03They take away their voices.
08:04These are really the voices that they love.
08:06They take away their voices because they're really important.
08:08so
08:27so
08:38Each melody tells a story of place, season and
09:07identity.
09:37Let's take a look at it.
09:44Let's take a look at it.
09:52Let's take a look at it.
09:59Let's take a look at it.
10:09Let's take a look at it.
10:15Let's take a look at it.
10:23Let's take a look at it.
10:35Let's take a look at it.
10:39Let's take a look at it.
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