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Table 1 Characteristics of the sites at which we studied house finches in Maricopa County, USA

From: Song characteristics track bill morphology along a gradient of urbanization in house finches (Haemorhous mexicanus)

Capture site

Phoenix downtown

ASU campus

Mesa organic farm

Crossroads district park

Chandler neighborhood

Phoenix zoo

South mountain park

Estrella mountain regional park

City

Phoenix

Tempe

Mesa

Gilbert

Chandler

Phoenix

Phoenix

Goodyear

Geographical coordinates

33°27′N 112°03′W

33°25′N 111°55′W

33° 27′N 111° 49′W

33° 19′N 111°43′ W

33° 18′N 111°55′ W

33°27′N 111°57′W

33°21′N 112°4′W

33° 25′N 112°25′ W

Number of humans living within 1 km of the study site

7291

10385

4600

17175

3948

50

1001

11

Sample size bill measurements

23

20

21

23

22

21

22

20

Sample size for song analyses

9

10

-

11

10

13

 

10

Mean song frequencies: lowest, highest and range in Hz (SE)

2162 (47), 6573 (206), 4411 (234)

2137 (55), 6446 (137), 4310 (188)

-

1844 (43), 5890 (195), 4045 (199)

2008 (60), 6212 (182), 4205 (202)

1968 (24), 6720 (112), 4752 (125)

-

1858 (60), 6806 (182), 4949 (200)

Mean bill size: Length, height, and width in mm (SE)

9.84 (0,076), 8.16 (0.043), 7.26 (0.041)

9.85 (0,062), 8.00 (0.037), 7.17 (0.040)

9.71 (0.072), 8.12 (0.044), 7.22 (0.047)

10.04 (0.072), 8.06 (0,059), 7.09 (0.055)

10.05 (0,083), 8.04 (0.042), 7.07 (0.041)

9.71 (0.056), 8.17 (0.050), 7.28 (0.042)

9.76 (0.057), 8.14 (0.046), 7.28 (0.070)

9.44 (0.073), 8.14 (0.047), 7.29 (0.043)

Habitats (% of land covered by):

        

Cultivated vegetation and grass

0.00

0.00

3.44

9.07

0.67

8.05

0.05

1.11

Disturbed (Mesic and Xeric vegetation)

57.55

38.79

48.72

40.28

59.53

9.01

17.26

1.73

Compacted soil (prior agriculture or not)

0.78

1.01

4.5

1.2

5.47

1.99

1.81

0.67

Disturbed (commercial, industrial, asphalt)

30.11

48.38

22.51

21.31

20.82

18.64

7.85

2.87

Undisturbed

10.55

9.56

14.45

12.05

10

57.45

68.89

67.44

Vegetation

1.01

2.25

6.37

3.32

3.47

3.16

4.12

3.62

River gravel and water

0

0

0

3.97

0.04

1.68

0.03

22.55