Results 61 to 70 of about 342 (141)

Individual Discrimination Within, but Not Between, Two Vocalization Types of the Black‐Capped Chickadee

open access: yesEthology, Volume 131, Issue 8, Page 1-12, August 2025.
Black‐capped chickadees' chick‐a‐dee calls and fee‐bee songs are individually distinct. We used an operant conditioning Go/No‐go paradigm to train chickadees to discriminate among four individuals' chick‐a‐dee calls or fee‐bee songs. Chickadees successfully learned this discrimination rule.
Sarah M. L. Smeltz   +6 more
wiley   +1 more source

Evaluating the Status of Lost, Found and Sighted Non-Native Pet Bird Species in South Africa

open access: yesDiversity
The global increase in the pet trade and ownership of pet birds has heightened the introduction of emerging invasive vertebrate species. We analyzed online databases of lost, found, and sighted non-native pet bird reports in South Africa to evaluate non ...
Tinyiko C. Shivambu   +5 more
doaj   +1 more source

Roosting, Nesting and Breeding Behaviour of Rose-Ringed Parakeet, Psittacula Krameri (Scopoli)

open access: yesInternational Journal of Research Studies in Zoology, 2019
Tariq, Syeda Azra, Zafar, Hina, Shoukat, S. Shahid (2019): Roosting, Nesting and Breeding Behaviour of Rose-Ringed Parakeet, Psittacula Krameri (Scopoli).
Tariq, Syeda Azra   +2 more
openaire   +2 more sources

Evaluation of roost culling as a management strategy for reducing invasive rose-ringed parakeet (Psittacula krameri) populations. [PDF]

open access: yesBiol Invasions, 2023
Anderson CJ   +8 more
europepmc   +1 more source

Damage To Maize Crop by Rose ringed Parakeet Psittacula krameri in the Punjab

open access: yes, 1973
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
Ramzan, M, Toor, H. S.
openaire   +2 more sources

Study of Avian Species in Relation to Exotic Trees at Ludhiana, Punjab

open access: yesInternational Journal of Bio-Resource and Stress Management, 2019
Birds are exclusively sensitive to alterations both in terms of environmental and ecological. Birds have very close association with trees. There is a complicated connection that is present between birds and their living and non- living components ...
Manpreet Kaur, Manoj Kumar
doaj  

Healthy Captive Rose - Ringed Parakeets (Psittacula krameri) - Hematological and Biochemical Values

open access: yesActa Scientiae Veterinariae
Background: Rose - ringed parakeets are popular pet birds worldwide. This study aimed to determine hematological and biochemical reference intervals for healthy Rose - ringed parakeets to help in the monitoring and early detection of diseases, preserving the health of birds and humans. Materials, Methods & Results: Blood samples were collected from
Gabriela Oliveira da Paz Augusto Pinto   +7 more
openaire   +2 more sources

Note on the Collar Appearance in the Male Rose ringed Parakeet, Psittacula Krameri (Scopoli)

open access: yes, 1976
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
Simwat, G S, Sidhu, A S
openaire   +2 more sources

Rose-ringed Parakeets in California: Established Populations and Potentially a Serious Agricultural Threat

open access: yes, 2020
The rose-ringed parakeet has been introduced to >40 countries, gaining its status as the most widely introduced parrot in the world. Although regarded as a strikingly beautiful bird by many people, this species is a severe agricultural pest that establishes and experiences a lag time prior to exponential population growth.
Shiels, Aaron B.   +3 more
openaire   +1 more source

Urban Foraging and Toxicity of Rose-Ringed Parakeets (Psittacula krameri) in Athens

open access: yes
The Rose-ringed Parakeet (Psittacula krameri) is an invasive parrot increasingly established in European cities, including Athens, Greece, yet its diet and exposure to plant toxins in Mediterranean ecosystems remain poorly documented. We examined seasonal foraging patterns in Athens and assessed the toxicity of key food items using a brine shrimp ...
Mathis A. B. Christodoulopoulos   +7 more
openaire   +1 more source

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