Napa Creek Bird Diversity Project

A Project of the Napa Creek Monitors

Napa Creek Restoration

Monitor Group Unites

Study Design

• Sampling technique: Point Counts

• Duration: 4 seasons; 1 year

• Periodicity: twice/month

• Originally hoped to compare restored and non-restored: unable to access non-restored.

Survey Route

• 4 point counts

• 200m apart

• ½ mile of creek

The Points

1

4 3

2

Survey Protocol

• 8 minute

surveys

• 1 observer, 1 recorder

• Survey at dawn!

Datasheet

Microsoft Access Database

Results

• 77 total species!

Expected Species

0

5

10

15

20

25

30

35

40

Nu

mb

er o

f Sp

ecie

s

Bird Diversity by Date

0

2

4

6

8

10

12

14

16

18

# o

f Si

ngi

ng

Bir

d D

etec

tio

ns

Singing Birds by Date

Unexpected Species

30

31

35

35

45

48

53

63

64

65

65

70

87

113

0 20 40 60 80 100 120

Anna's Hummingbird

California Towhee

Song Sparrow

Yellow-rumped Warbler

House Finch

Black Phoebe

Oak Titmouse

Mallard

Cedar Waxwing

Mourning Dove

Western Scrub-Jay

American Robin

American Crow

Unidentified Gull

Average Distance (Meters)

Most Common Birds by Distance

3

6

9

11

23

13 14

5

2 2 2

0

3

1 2 2

0 0 1

0 0 1

0 0 0 0

5

10

15

20

25

Det

ecti

on

s

American Robin Detections by Date

1 1

2

3

1

0

1

2

3

4

Det

ecti

on

s

Hooded Oriole Detections by Date

Summer Resident

Winter Resident

0

10

20

30

40

50

60

70

AMRO AMCR MODO HOFI ANHU BLPH YRWA SOSP MALL WESJ RCKI CALT OATI NOFL CEWA EUST RBGU BEKI

Det

ecti

on

s

Species

Species Detections by Habitat

Riparian

Suburban

Thank You!