---
title: Hummingbirds beat their wings up to about 80 times a second, can fly… — The aviary: the walk-through tropical house · tree and pragmatics
description: Hummingbirds beat their wings up to about 80 times a second, can fly backwards, drink nectar many times an hour because hovering burns so much energy, and save energy at night in a deep sleep called torpor. Who acts: Hummingbirds, deep sleep. A sentence of the lesson «The aviary: the walk-through tr
---

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# The aviary: the walk-through tropical house, sentence 7

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Hummingbirds beat their wings up to about 80 times a second, can fly backwards, drink nectar many times an hour because hovering burns so much energy, and save energy at night in a deep sleep called torpor.

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**Who acts:** Hummingbirds, deep sleep · **What happens:** beat up, fly, drink, hover, burn, save · **To what, where:** wings, nectar, much energy, energy, deep sleep, torpor · **Speech:** someone speaks here

<!-- .vabout -->
This is a sentence of the lesson «The aviary: the walk-through tropical house» 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 (Hummingbirds, deep sleep), what happens, when and where, as Mova's frames read it from the tree.

## The tree {#tree}

```conllu
# sent_id = school:biology:093-the-aviary-the-walk-through-tropical-house.lesson:7
# text = Hummingbirds beat their wings up to about 80 times a second, can fly backwards, drink nectar many times an hour because hovering burns so much energy, and save energy at night in a deep sleep called torpor.
# source = school lesson (ours)
# course = biology
# lesson = 093-the-aviary-the-walk-through-tropical-house.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): R2-punct-next ×2, R5-strong ×1, R6-punct-agree ×1, R7-rel-agree ×1
1	Hummingbirds	hummingbird	NOUN	NNS	Number=Plur	2	nsubj	_	_
2	beat	beat	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
3	their	their	PRON	PRP$	Case=Gen|Number=Plur|Person=3|Poss=Yes|PronType=Prs	4	nmod:poss	_	_
4	wings	wing	NOUN	NNS	Number=Plur	2	obj	_	_
5	up	up	ADP	RP	_	2	compound:prt	_	_
6	to	to	ADP	IN	_	9	case	_	_
7	about	about	ADV	RB	_	8	advmod	_	_
8	80	80	NUM	CD	NumForm=Digit|NumType=Card	9	nummod	_	_
9	times	time	NOUN	NNS	Number=Plur	2	obl	_	_
10	a	a	DET	DT	Definite=Ind|PronType=Art	11	det	_	_
11	second	second	NOUN	NN	Number=Sing	9	nmod	_	_
12	,	,	PUNCT	,	_	14	punct	_	Agree=R2-punct-next|Haiku=2:punct
13	can	can	AUX	MD	VerbForm=Fin	14	aux	_	_
14	fly	fly	VERB	VB	VerbForm=Inf	2	conj	_	_
15	backwards	backwards	ADV	RB	_	14	advmod	_	_
16	,	,	PUNCT	,	_	17	punct	_	Agree=R6-punct-agree|Haiku=18:punct
17	drink	drink	VERB	VB	VerbForm=Inf	2	conj	_	_
18	nectar	nectar	NOUN	NN	Number=Sing	17	obj	_	_
19	many	many	ADJ	JJ	Degree=Pos	20	amod	_	_
20	times	time	NOUN	NNS	Number=Plur	17	obl	_	_
21	an	a	DET	DT	Definite=Ind|PronType=Art	22	det	_	_
22	hour	hour	NOUN	NN	Number=Sing	20	nmod:unmarked	_	_
23	because	because	SCONJ	IN	_	25	mark	_	_
24	hovering	hover	VERB	VBG	VerbForm=Ger	25	nsubj	_	_
25	burns	burn	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	14	advcl	_	_
26	so	so	ADV	RB	_	27	advmod	_	_
27	much	much	ADJ	JJ	Degree=Pos	28	amod	_	Agree=R7-rel-agree|Haiku=28:advmod|HaikuPos=ADV:RB:_
28	energy	energy	NOUN	NN	Number=Sing	25	obj	_	_
29	,	,	PUNCT	,	_	31	punct	_	Agree=R2-punct-next|Haiku=2:punct
30	and	and	CCONJ	CC	_	31	cc	_	_
31	save	save	VERB	VB	VerbForm=Inf	2	conj	_	_
32	energy	energy	NOUN	NN	Number=Sing	31	obj	_	_
33	at	at	ADP	IN	_	34	case	_	_
34	night	night	NOUN	NN	Number=Sing	31	obl	_	Agree=R5-strong|Haiku=32:nmod
35	in	in	ADP	IN	_	38	case	_	_
36	a	a	DET	DT	Definite=Ind|PronType=Art	38	det	_	_
37	deep	deep	ADJ	JJ	Degree=Pos	38	amod	_	_
38	sleep	sleep	NOUN	NN	Number=Sing	31	obl	_	_
39	called	call	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	38	acl	_	_
40	torpor	torpor	NOUN	NN	Number=Sing	39	xcomp	_	_
41	.	.	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 | **beat up** | present | Hummingbirds | hummingbirds's wings |  |  | time |  | vn sound\_emission-43.2 «PP.location V NP»: agent=Location wing=Theme |
| 2 | **fly** | can | Hummingbirds *not said here* |  |  |  |  | backwards *property* | vn spatial\_configuration-47.6-1 «NP V»: agent=Theme |
| 3 | **drink** | infinitive | Hummingbirds *not said here* | nectar |  |  | time |  | vn eat-39.1-1 «NP V NP»: agent=Agent nectar=Patient |
| 4 | **hover** | gerund |  |  |  |  |  |  | vn modes\_of\_being\_with\_motion-47.3 «NP V»: agent=Theme |
| 5 | **burn** | present |  | much energy |  |  |  |  | vn light\_emission-43.1 «NP V NP.theme»: agent=Agent energy=Theme |
| 6 | **save** | infinitive | Hummingbirds *not said here* | energy |  | a deep sleep | night |  | vn get-13.5.1-1 «NP V NP»: agent=Agent energy=Theme |
| 7 | **call** | participle | a deep sleep *not said here* | torpor |  |  |  |  | vn initiate\_communication-37.4.2-1 «NP V»: agent=Agent |

<!-- .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:093-the-aviary-the-walk-through-tropical-house.lesson:7`.

**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): R2-punct-next ×2, R5-strong ×1, R6-punct-agree ×1, R7-rel-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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