---
title: Kestrels hover by flapping into the wind while keeping the head stil… — Falcons, hawks, kites, ospreys and vultures · tree and pragmatics
description: Kestrels hover by flapping into the wind while keeping the head still, watching for voles and mice, and scientists reported they can see ultraviolet light, which may make vole wee trails glow. Who acts: Kestrels, scientists, ultraviolet light, vole wee trails. A sentence of the lesson «Falcons, hawk
---

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# Falcons, hawks, kites, ospreys and vultures, sentence 11

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Kestrels hover by flapping into the wind while keeping the head still, watching for voles and mice, and scientists reported they can see ultraviolet light, which may make vole wee trails glow.

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**Who acts:** Kestrels, scientists, ultraviolet light, vole wee trails · **What happens:** hover, flap, keep, watch, report, see · **To what, where:** wind, head, ultraviolet light

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This is a sentence of the lesson «Falcons, hawks, kites, ospreys and vultures» of the biology course of Mova's primary school. The page gives its syntax tree — a dependency tree in the style of Universal Dependencies — and its pragmatics clause by clause: who acts (Kestrels, scientists, ultraviolet light, vole wee trails), what happens, when and where, as Mova's frames read it from the tree.

## The tree {#tree}

```conllu
# sent_id = school:biology:324-falcons-hawks-kites-ospreys-and-vultures.lesson:11
# text = Kestrels hover by flapping into the wind while keeping the head still, watching for voles and mice, and scientists reported they can see ultraviolet light, which may make vole wee trails glow.
# source = school lesson (ours)
# course = biology
# lesson = 324-falcons-hawks-kites-ospreys-and-vultures.lesson
# annotation = Mova annot: Rust (en) → Haiku 5.5 (medium, Batches API) patches; gates UD 2.18; agreed by treeagree rules (Stanza, Trankit, spaCy trf): R7-rel-agree ×1, R8-pos-agree ×1
1	Kestrels	kestrel	NOUN	NNS	Number=Plur	2	nsubj	_	_
2	hover	hover	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
3	by	by	SCONJ	IN	_	4	mark	_	_
4	flapping	flap	VERB	VBG	Tense=Pres|VerbForm=Part	2	advcl	_	_
5	into	into	ADP	IN	_	7	case	_	_
6	the	the	DET	DT	Definite=Def|PronType=Art	7	det	_	_
7	wind	wind	NOUN	NN	Number=Sing	4	obl	_	_
8	while	while	SCONJ	IN	_	9	mark	_	_
9	keeping	keep	VERB	VBG	Tense=Pres|VerbForm=Part	4	advcl	_	_
10	the	the	DET	DT	Definite=Def|PronType=Art	11	det	_	_
11	head	head	NOUN	NN	Number=Sing	9	obj	_	_
12	still	still	ADV	RB	_	9	advmod	_	_
13	,	,	PUNCT	,	_	14	punct	_	_
14	watching	watch	VERB	VBG	Tense=Pres|VerbForm=Part	2	advcl	_	_
15	for	for	ADP	IN	_	16	case	_	_
16	voles	vole	NOUN	NNS	Number=Plur	14	obl	_	_
17	and	and	CCONJ	CC	_	18	cc	_	_
18	mice	mouse	NOUN	NNS	Number=Plur	16	conj	_	_
19	,	,	PUNCT	,	_	22	punct	_	_
20	and	and	CCONJ	CC	_	22	cc	_	_
21	scientists	scientist	NOUN	NNS	Number=Plur	22	nsubj	_	_
22	reported	report	VERB	VBD	Mood=Ind|Number=Sing|Person=3|Tense=Past|VerbForm=Fin	2	conj	_	_
23	they	they	PRON	PRP	Case=Nom|Number=Plur|Person=3|PronType=Prs	25	nsubj	_	_
24	can	can	AUX	MD	VerbForm=Fin	25	aux	_	_
25	see	see	VERB	VB	VerbForm=Inf	22	ccomp	_	_
26	ultraviolet	ultraviolet	ADJ	JJ	Degree=Pos	27	amod	_	Agree=R7-rel-agree|Haiku=27:compound|HaikuPos=NOUN:NN:Number=Sing
27	light	light	NOUN	NN	Number=Sing	25	obj	_	_
28	,	,	PUNCT	,	_	31	punct	_	_
29	which	which	PRON	WDT	PronType=Rel	31	nsubj	_	_
30	may	may	AUX	MD	VerbForm=Fin	31	aux	_	_
31	make	make	VERB	VB	VerbForm=Inf	27	acl:relcl	_	_
32	vole	vole	NOUN	NN	Number=Sing	34	compound	_	_
33	wee	wee	ADJ	JJ	Degree=Pos	34	amod	_	_
34	trails	trail	NOUN	NNS	Number=Plur	35	nsubj	_	_
35	glow	glow	VERB	VB	VerbForm=Inf	31	xcomp	_	Agree=R8-pos-agree|Haiku=31:xcomp|HaikuPos=VERB:VBP:Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin
36	.	.	PUNCT	.	_	2	punct	_	_
```

## Pragmatics {#pragmatics}

<!-- .note -->
No stored speech act for this sentence.

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **hover** | present | Kestrels |  |  |  |  |  | vn modes\_of\_being\_with\_motion-47.3 «NP V»: agent=Theme |
| 2 | **flap** | gerund | Kestrels *not said here* |  |  | the wind |  |  | vn crane-40.3.2 «NP V NP PP.recipient»: agent=Agent into wind=Recipient |
| 3 | **keep** | gerund | Kestrels *not said here* | the head |  |  | still |  | vn keep-15.2 «NP V NP»: agent=Agent head=Theme |
| 4 | **watch** | gerund | Kestrels *not said here* |  |  |  |  | for voles and mice | vn search-35.2 «NP V PP.theme NP.location»: agent=Agent for vole=Theme |
| 5 | **report** | past | scientists |  |  |  |  |  | vn characterize-29.2-1-2 «NP V NP»: agent=Agent clause=Theme |
| 6 | **see** | can | scientists *= scientist* | ultraviolet light |  |  |  |  | vn comprehend-87.2-1-1 «NP V NP»: agent=Experiencer light=Stimulus |
| 7 | **make** | may | ultraviolet light |  |  |  |  |  | tree rules |
| 8 | **glow** | infinitive | vole wee trails |  |  |  |  |  | vn light\_emission-43.1 «NP V»: agent=Theme |

<!-- .note -->
One row per clause the reader finds. «not said here»: a role filled from the clause above. «roles by»: a VerbNet class and frame when one fits the verb, else the reader's rules on the tree.

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**Licence: [CC BY-SA 4.0](https://creativecommons.org/licenses/by-sa/4.0/)**, as the whole of Mova corpus 0.4, of which this treebank (the agreed school, `mova-school-agreed-en.conllu`) is part. The lessons were written for Mova's primary school. Sentence `school:biology:324-falcons-hawks-kites-ospreys-and-vultures.lesson:11`.

**The tree:** Mova annot: Rust (en) → Haiku 5.5 (medium, Batches API) patches; gates UD 2.18; agreed by treeagree rules (Stanza, Trankit, spaCy trf): R7-rel-agree ×1, R8-pos-agree ×1. **The frames** are read from the tree by Mova's frames reader (`prag`) when this page is built, the lesson read in order, so a pronoun may be resolved from an earlier sentence.

See the [release 0.4](https://md.mova.elamur.ai/free/en/releases/0.4/).

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