Environmental and Social Research

John F. Kearney & Associates

METADATA

Microphone: SMX-NFC

<Sampling format; 16 bit

<Sampling rate: 24,000 Hz

Recording Equipment: Song Meter 2

Analysis Software: Raven Pro

High Frequency Detector Settings

>6000-11000 Hz, 23-395 ms,

>Signal/Noise 25% Minimum Occupancy

>Signal/Noise Ratio Threshold 3.5 dB

>Block Size 4992 ms, Hop Size 244 ms, 50%

Low Frequency Detector Settings

>2250-3750 Hz, 35-325 ms,

>Signal/Noise 20% Minimum Occupancy

>Signal/Noise Ratio Threshold 4.0 dB

>Block Size 998 ms, Hop Size 244 ms, 50%

Nocturnal Migration 2018


Including Morning Flight

Cape Forchu, Yarmouth County, Nova Scotia

N43.80028 W66.16320

Weekly Reports at Cape Forchu for the Spring 2018



3rdWeek of April


Nocturnal migration was again very sparse, but the few calls marked the onset of the migration of Savannah Sparrows and Hermit Thrushes.


Morning counts heralded the arrival of Winter Wren and Palm Warbler. There was an increasing loudness to the morning chorus of American Robins, Song Sparrows, and Winter Wrens. Highest activity was on 19 to 21 April.


All results for the nocturnal and morning counts are summarized in the four table below.



2ndWeek of April



Nocturnal migration increased marginally over the previous week with a total of 9 night flight calls, consisting of American Robins, Song Sparrows, and an unknown species.


The most common morning birds were American Crow, American Robin, Song Sparrow, and Dark-eyed Junco. The first Swamp Sparrow was on 12 April. A Cape Forchu specialty, House Finch, was recorded on two mornings. The greatest activity was on 10-12 April.


All results for the nocturnal and morning counts are summarized in the 4 tables below.




1stWeek of April


There was just a trace of nocturnal migration during the first week of April consisting of single flight calls from a American Tree Sparrow and an unidentified sparrow.


This season I am also recording during the morning from civil sunrise to 3 hours after civil sunrise. Four audio point counts of 5-minute duration at one hour intervals are analyzed.


The morning counts indicated higher bird activity on 2 and 3 April. The most abundant birds on those days were Song Sparrow, American Crow, Blue Jay, American Goldfinch, Northern Flicker, and Dark-eyed Junco.


These results are summarized in the following tables.

 

Total Flight Calls









(Civil sunset to civil dawn)








Species

01-Apr

02-Apr

03-Apr

04-Apr

05-Apr

06-Apr

07-Apr

Total

American Tree Sparrow



1





1

sparrow sp.

 

 

 

 

 

1

 

1

Total








2










Average Number of Birds/5-Minute Morning Count

(Every hour from civil dawn to 3 hours after civil dawn)




Species

01-Apr

02-Apr

03-Apr

04-Apr

05-Apr

06-Apr

07-Apr


Downy Woodpecker

--

0.25

--

--

--

--

--


Northern Flicker

0.50

--

0.50

--

--

--

--


Blue Jay

--

--

0.75

--

--

--

--


American Crow

--

0.75

2.00

0.50

--

0.25

0.25


Black-capped Chickadee

0.75

--

--

--

--

--

--


Golden-crowned Kinglet

0.25

0.25

--

--

--

--

0.50


Dark-eyed Junco

0.25

0.50

0.50

--

--

0.25

--


Song Sparrow

--

0.25

2.50

--

--

--

--


American Goldfinch

--

0.75

--

--

--

--

--











Total Morning Counts

01-Apr

02-Apr

03-Apr

04-Apr

05-Apr

06-Apr

07-Apr

Total

Total Species

4

6

5

1

0

2

2

9

Total Individuals

7

11

25

2

0

2

3

50




Monitoring_Stations_Map.jpgView_from_Monitoring_Station.jpg

View from Monitoring Station

Monitoring_Station_5547.JPG

Habitat at Monitoring Station