Passerines are elusive animals, and their capture generally requires considerable fieldwork. This study describes the capture and sampling of free-living birds from two of the most illegally trafficked Brazilian wild passerine species, namely the red-crested cardinal (Paroaria coronata) and green-winged saltator (Saltator similis). The study is part of the planning process for a rehabilitation and release program for confiscated conspecifics of both species. A total of 290 free-living wild passerines were captured, and most of them were sampled, banded, and immediately released at the same site. Blood, feces, and oropharyngeal swabs were collected for subsequent health analysis and blood drops were stored on FTA cards for genetic assessments. Conspecific live decoys played an important role in the trapping process, especially those with a high-ranking for dueling behavior and vocal performance. Most of the green-winged saltators that promptly engage in combat were caught with netted trapdoors. However, red-crested cardinals are shy, cautious, open-area passerines that seldom perch on unknown objects. These were mostly captured in loop snares after they perched on tree branches used as triggers. Although mist netting was more difficult to install and captured the most non-target species, it was the fastest technique and also provided comparable numbers of captures for both target species. Despite being an old and well-established practice, detailed information on the use of live decoys for capturing free-living passerines is scarce.

雀形目是难以捉摸的动物，捕获它们通常需要大量的实地工作。这项研究描述了从两种最非法贩运的巴西野生雀形目物种，即红冠红雀 ( Paroaria coronata ) 和绿翅雀 ( Saltator similis ) 中捕获和取样的自由生活鸟类。）。该研究是针对这两种物种被没收的同种动物的恢复和释放计划规划过程的一部分。共捕获自由生活的野生雀形目290只，其中大部分在同一地点被取样、捆扎并立即释放。收集血液、粪便和口咽拭子用于随后的健康分析，并将血滴储存在 FTA 卡上用于基因评估。同种活诱饵在诱捕过程中发挥了重要作用，尤其是那些在决斗行为和声音表现方面排名靠前的诱饵。大多数迅速参与战斗的绿翼跳跃者都被网状活板门抓住了。然而，红冠红雀是害羞、谨慎、开阔的雀形目，很少栖息在未知物体上。这些主要是在它们栖息在用作触发器的树枝上之后在循环圈套中捕获的。尽管雾网更难安装和捕获最多的非目标物种，但它是最快的技术，并且还为两种目标物种提供了相当数量的捕获。尽管这是一种古老而成熟的做法，但关于使用活诱饵捕捉自由生活的雀形目动物的详细信息却很少。