Strix aluco

Tawny owl

Maximum lifespan

22.4 yr

AnAge record

mtDNA size

18,632 bp

RefSeq NC_072569.1

GC content

46.76%

Whole genome

Non-coding

3,171 bp

D-loop 396 bp

Where Tawny owl sits among 2,335 species

Whole-genome GC content against maximum lifespan. Tawny owl has the 771st longest lifespan of them.

This species
Other birds
Other classes

Plot other mtDNA features with this species highlighted

Base composition

Whole genome18,632 bp

GC skew (G − C) / (G + C): −0.397
AT skew (A − T) / (A + T): +0.111

Life history

Maximum lifespan: 22.4 years
Adult weight: 520 g
Female sexual maturity: 365 days
Male sexual maturity: 365 days

Lifespan from AnAge · AnAge record · other traits from AnAge build 15 (HAGRID 01694)

About this record

Lifespan source: AnAge build 15
Based on: an animal in the wild
Data quality: acceptable, medium sample
Licence: Free to use, subject to the Human Ageing Genomic Resources conditions of use
Status: New in build 2
In the database since: build 2 (2026-11-13)

Every change against the 2015 build is in the changelog download.

Composition by region

Reference (L) strand as deposited in RefSeq

Whole genome18,632 bp

Protein-coding11,364 bp

12S rRNA983 bp

16S rRNA1,576 bp

All tRNA1,552 bp

D-loop396 bp

Genes and regions

Select a column to sort; select a gene to compare it across species

Base composition of Strix aluco genes

ND1NADH dehydrogenase subunit 1	960 bp	26.5%	24.5%	14.2%	34.9%	49.06%	−0.423	+0.039
ND2NADH dehydrogenase subunit 2	1,039 bp	31.4%	21.8%	9.8%	37.1%	46.87%	−0.581	+0.181
COX1Cytochrome c oxidase subunit I	1,551 bp	25.6%	25.5%	17.3%	31.6%	48.87%	−0.293	+0.001
COX2Cytochrome c oxidase subunit II	684 bp	29.1%	23.5%	15.1%	32.3%	47.37%	−0.364	+0.106
ATP8ATP synthase F0 subunit 8	168 bp	32.7%	20.2%	7.7%	39.3%	47.02%	−0.671	+0.236
ATP6ATP synthase F0 subunit 6	684 bp	29.1%	23.1%	11.1%	36.7%	47.81%	−0.535	+0.115
COX3Cytochrome c oxidase subunit III	784 bp	27.9%	25.1%	15.4%	31.5%	46.94%	−0.342	+0.053
ND3NADH dehydrogenase subunit 3	351 bp	27.1%	25.4%	12.5%	35.0%	47.58%	−0.473	+0.033
ND4LNADH dehydrogenase subunit 4L	297 bp	24.2%	23.9%	14.8%	37.0%	51.85%	−0.429	+0.007
ND4NADH dehydrogenase subunit 4	1,378 bp	29.3%	22.5%	10.9%	37.3%	48.19%	−0.548	+0.132
ND5NADH dehydrogenase subunit 5	1,821 bp	29.8%	23.5%	11.8%	34.9%	46.68%	−0.496	+0.118
ND6NADH dehydrogenase subunit 6	522 bp	38.3%	11.7%	9.8%	40.2%	50.00%	−0.609	+0.533
CYTBCytochrome b	1,143 bp	26.5%	24.8%	13.2%	35.4%	48.64%	−0.457	+0.032
12S rRNA12S ribosomal RNA	983 bp	31.6%	17.5%	19.3%	31.5%	50.87%	−0.240	+0.288
16S rRNA16S ribosomal RNA	1,576 bp	33.5%	18.9%	19.0%	28.6%	47.59%	−0.200	+0.278
D-loopControl region (D-loop)	396 bp	18.2%	30.8%	17.7%	33.3%	51.01%	−0.307	−0.258

Codon usage

Counts per codon, darker is more frequent

Gene

3,793 codons in all protein-coding genes. Grouped with the Vertebrate mitochondrial code (NCBI table 2).

Phe F5.3%

UUU61

UUC141

Leu L18.4%

UUA68

UUG19

CUU70

CUC179

CUA296

CUG67

Ile I7.0%

AUU71

AUC193

Met M4.1%

AUA118

AUG39

Val V4.4%

GUU28

GUC44

GUA64

GUG30

Ser S7.6%

UCU28

UCC103

UCA86

UCG13

AGU12

AGC48

Pro P6.1%

CCU25

CCC100

CCA93

CCG14

Thr T9.9%

ACU51

ACC181

ACA137

ACG5

Ala A8.0%

GCU48

GCC165

GCA81

GCG9

Tyr Y2.8%

UAU33

UAC73

His H3.0%

CAU18

CAC94

Gln Q2.5%

CAA80

CAG13

Asn N3.2%

AAU29

AAC94

Lys K2.2%

AAA77

AAG6

Asp D1.7%

GAU18

GAC45

Glu E2.4%

GAA68

GAG24

Cys C0.8%

UGU7

UGC23

Trp W2.8%

UGA95

UGG13

Arg R1.9%

CGU5

CGC20

CGA40

CGG6

Gly G5.7%

GGU23

GGC72

GGA74

GGG46

Stop 0.3%

UAA7

UAG1

AGA0

AGG2

Genome map

39 annotated features in NC_072569.1

Hover, tap or tab to a feature to see its position, length, strand and GC content. Genes and rRNAs open their own pages.

Protein-coding13
rRNA2
tRNA22
D-loop2

Outer ring: + strand, arrows run clockwise. Inner ring: − strand.
Middle ring: GC% of each gene against the whole genome (46.8%, dashed): out is GC-richer, in is AT-richer (full height = 6 points).

All 39 features as a table

Annotated features of Strix aluco (NC_072569.1)
Feature	Type	Start	End	Length	Strand	GC
tRNA-Phe	Transfer RNA	1	68	68 bp	+	–
12S rRNA	Ribosomal RNA	68	1,050	983 bp	+	50.9%
tRNA-Val	Transfer RNA	1,050	1,121	72 bp	+	–
16S rRNA	Ribosomal RNA	1,134	2,709	1,576 bp	+	47.6%
tRNA-Leu (UUR)	Transfer RNA	2,709	2,783	75 bp	+	–
ND1	Protein-coding gene	2,798	3,757	960 bp	+	49.1%
tRNA-Ile	Transfer RNA	3,756	3,827	72 bp	+	–
tRNA-Gln	Transfer RNA	3,839	3,909	71 bp	−	–
tRNA-Met	Transfer RNA	3,909	3,977	69 bp	+	–
ND2	Protein-coding gene	3,978	5,016	1,039 bp	+	46.9%
tRNA-Trp	Transfer RNA	5,017	5,091	75 bp	+	–
tRNA-Ala	Transfer RNA	5,093	5,161	69 bp	−	–
tRNA-Asn	Transfer RNA	5,163	5,236	74 bp	−	–
tRNA-Cys	Transfer RNA	5,239	5,305	67 bp	−	–
tRNA-Tyr	Transfer RNA	5,305	5,376	72 bp	−	–
COX1	Protein-coding gene	5,378	6,928	1,551 bp	+	48.9%
tRNA-Ser (UCN)	Transfer RNA	6,920	6,991	72 bp	−	–
tRNA-Asp	Transfer RNA	6,995	7,063	69 bp	+	–
COX2	Protein-coding gene	7,066	7,749	684 bp	+	47.4%
tRNA-Lys	Transfer RNA	7,759	7,828	70 bp	+	–
ATP8	Protein-coding gene	7,830	7,997	168 bp	+	47.0%
ATP6	Protein-coding gene	7,988	8,671	684 bp	+	47.8%
COX3	Protein-coding gene	8,671	9,454	784 bp	+	46.9%
tRNA-Gly	Transfer RNA	9,455	9,523	69 bp	+	–
ND3	Protein-coding gene	9,524	9,875	352 bp	+	47.6%
tRNA-Arg	Transfer RNA	9,878	9,946	69 bp	+	–
ND4L	Protein-coding gene	9,948	10,244	297 bp	+	51.9%
ND4	Protein-coding gene	10,238	11,615	1,378 bp	+	48.2%
tRNA-His	Transfer RNA	11,616	11,685	70 bp	+	–
tRNA-Ser (AGY)	Transfer RNA	11,688	11,753	66 bp	+	–
tRNA-Leu (CUN)	Transfer RNA	11,756	11,826	71 bp	+	–
ND5	Protein-coding gene	11,827	13,647	1,821 bp	+	46.7%
CYTB	Protein-coding gene	13,653	14,795	1,143 bp	+	48.6%
tRNA-Thr	Transfer RNA	14,797	14,866	70 bp	+	–
D-loop	Control region	15,595	15,792	198 bp	–	51.0%
tRNA-Pro	Transfer RNA	16,409	16,478	70 bp	−	–
ND6	Protein-coding gene	16,485	17,006	522 bp	−	50.0%
tRNA-Glu	Transfer RNA	17,010	17,083	74 bp	−	–
D-loop	Control region	17,668	17,865	198 bp	–	51.0%