Playback used

Individual response


elegans

virginalis

maria

concinna

vigorsii


elegans

Aggressive (n = 50)

Aggressive (n = 10)

Aggressive (n = 5)

No (n = 10)

No (n = 5)

virginalis

Responsive (n = 5)

Aggressive (n = 15)

N/A

No (n = 10)

No (n = 4)

maria

Aggressive (n = 5)

Aggressive (n = 5)

Aggressive (n = 200)

No (n = 50)

Responsive (n = 10)

concinna

No (n = 15)

No (n = 10)

No (n = 50)

Aggressive (n = 300)

No (n = 10)

vigorsii

No (n = 5)

No (n = 2)

No (n = 10)

Responsive (n = 10)

Aggressive (n = 30)

 “No” indicates no change in the bird’s behavior upon playback. “Responsive” means that the bird called back without moving towards the source of the playback. “Aggressive” means the bird moved towards the source of the playback, either by flying, hopping, or moving up to a more prominent perch. N/A = no playback was attempted. Approximate sample sizes of playback trials (n) are given for each combination; values of n > 5 are rounded to the nearest 5; the two values of n > 100 are rounded to the nearest 100. Intrataxon combinations had the highest sample sizes and, according to expectation, they invariably elicited an aggressive response