Secretary Island

Secretary Island

Kiwi Calls

Call Type	Number
Solo Male	1320
Solo Female	59
Duets	174
Individual	1727

Calls by Location

Location	Solo_Male	Solo_Female	Duets	Individual	False_Positives	Close	Low_Noise
Lake_Sec	529	16	28	601	162	20	157
Crossroad	403	22	59	543	218	38	195
Grono	269	13	74	430	29	84	234
Marley	110	7	13	143	139	4	59
North_R	9	0	0	9	101	0	3
Mahoe	0	1	0	1	10	0	0
Astelia	0	0	0	0	6
TOTAL	1320	59	174	1727	665	146	648

Dataset

Mean: 4.3 calls per hour

Calls per Hour

variable	mean	min	median	max
calls	4.296019900497512	0	3.0	24
male	3.716417910447761	0	3.0	18
female	0.5796019900497512	0	0.0	6
duet	0.43283582089552236	0	0.0	5
hour_bucket		2018-03-08T10:00:00.0	2019-04-13T09:30:00.0	2020-04-19T10:00:00.0

This chart plots median male + median female calls for all hour buckets with X calls, as a result male+female will not always equal the X value, but is close. ie this is the median number of male and female calls accross all 1 hour samples with X calls recorded. This is the total calls for all recorders, it is not per recorder.

Time of Day

Hour is UTC, to get to NZ time add 12 or 13 hours.

Calls per Hour

Month

All calls were recorded in April 2018, 2019 or 2020.

Calls per Hour by Location

Mean calls per hour by location: 1.2977

Graph

Calls per Hour

Table

location	male	female	duet	individual
Grono	2.5789	0.6541	0.5564	3.233
Lake_Sec	2.0328	0.1606	0.1022	2.1934
Crossroad	1.5298	0.2682	0.1954	1.798
Marley	0.4489	0.073	0.0474	0.5219
North_R	0.0328	0.0	0.0	0.0328
Mahoe	0.0	0.007	0.0	0.007
TOTAL	1.1039	0.1938	0.1502	1.2977

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Thanks to the Pomona Island Charitable Trust
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CC BY-SA 4.0 David Cary. Last modified: September 27, 2023.