RiverFish

Bullhead · Cottus gobio

Bullhead in the River Sowe

Largest measured bullhead: 9.5 cm

The largest bullhead measured in Environment Agency surveys of the River Sowe was 9.5 cm, recorded at Walsgrave on 13 September 2016.

Across 165 measured bullhead, the median measured length was 6.5 cm.

RiverFish uses Environment Agency survey measurements rather than rod-and-line angling records. These figures show fish measured during EA surveys of the River Sowe.

See bullhead records across England →

Most recent observation27 August 2025Walsgrave
Largest measured bullhead
9.5 cm
Median length
6.5 cm
Fish measured
165
Survey locations
10

Individual EA measurements

Largest measured bullhead

The largest individual measurements in this river and species dataset. Equal measurements are retained as separate surveyed fish.

LengthSurvey dateSurvey locationSurvey ID
9.5 cm13 Sept 2016Walsgrave149541
9.4 cm14 Aug 2013Baginton Mill138101
9.2 cm14 Aug 2013Baginton Mill By-Pass Channel138102
9.1 cm1 Sept 2016Russells Nurseries149326
9.1 cm14 Aug 2013Baginton Mill By-Pass Channel138102
9 cm1 Sept 2016Russells Nurseries149326
9 cm1 Sept 2016Russells Nurseries149326
8.9 cm1 Sept 2016Russells Nurseries149326
8.9 cm22 Aug 2013u/s Bagington Mill Weir139319
8.8 cm13 Sept 2016Walsgrave149541

Lengths are direct survey measurements. RiverFish does not estimate fish weights from length.

Explore the river

Where bullhead were found

Each point marks a survey location with at least one bullhead record.

Choose a point on the map to see what was recorded there.

Map points are approximate and don’t show fishing access. Check local permissions before visiting.

Place surveyedFirst recordedLast recordedVisits finding bullhead
Walsgrave13 Sept 201627 Aug 20252
Russells Nurseries8 Jul 199816 Jun 20224
u/s Bagington Mill Weir22 Aug 20135 Aug 20142
Baginton Mill By-Pass Channel14 Aug 20135 Aug 20142
Stoneleigh Layby21 May 200310 Jun 20143
Baginton Mill14 Aug 201314 Aug 20131
Binley Bridge28 Jul 199829 May 20032
Henley Rd., Wyken29 Jul 199829 Jul 19981
Sowe Bridge, Walsgrave (Smite Brk confl)23 Jun 199327 Jul 19982
Clifford Bridge, Wyken27 Jul 199827 Jul 19981

Choose a point or table row to see the location. More survey visits can mean more records, but not necessarily more fish.

1993–2025

Survey records by year

Each bar shows how many survey visits recorded bullhead that year.

Fish measured by surveyors

Measured length distribution

See how the 165 measured fish were spread across different length ranges.

Smallest
2.1 cm
Lower quarter
4.1 cm
Median
6.5 cm
Upper quarter
7.9 cm
Largest
9.5 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Sowe

Compare other species with enough survey and measurement data for a detailed page.

Stone loach 3-spined stickleback Minnow Gudgeon Perch European eel

Before you fish

Good to know

These are past survey records, so the fish present today may be different. Map points are approximate—check local access, permissions and fishing rules before visiting.

Learn how RiverFish uses the data →