scutulata) ( a) and the breeding and known wintering ranges of both the japonica lineage and the undetermined mitochondrial lineage (Lin et al.
Map of East and Southeast Asia depicting the breeding range of the Brown Boobook ( N. the Philippine archipelago with the exclusion of Palawan and satellite islands), and the Brown Boobook ( Ninox scutulata), which is distributed across South and Southeast Asia to the Greater Sundas and Palawan (Fig. However, King ( 2002) analyzed bioacoustic and morphometric data and determined that the complex comprises three biological species: the Northern Boobook ( Ninox japonica), which breeds from southeast Siberia to Taiwan and adjacent mainland China, and winters across Southeast Asia, the Chocolate Boobook ( Ninox randi), which is endemic to the main Philippines (i.e. Some authors suggest that the complex is a single species comprising as many as 13 subspecies (König et al. This differentiation has led to confusion about the taxonomic status of these populations. Their mysterious nature is typified by the Brown Hawk Owl or Brown Boobook complex ( Ninox sp.), an assemblage widely distributed across Asia with populations in various regions exhibiting differentiation with respect to phenology, vocalizations and plumage. Strigiformes, the bird order known commonly as owls, comprise cryptically colored nocturnal birds that can be notoriously hard to identify in the field. Further genetic and bioacoustic investigation is required to resolve the taxonomic status of this lineage.
This cryptic lineage may be more widespread in its breeding quarters, extending to the Chinese and Russian mainland, in which case the name florensis would apply to it. Our data show that the mitochondrial signature previously documented in resident Taiwanese populations of the Northern Boobook extends to migratory populations. Further, the samples belong to the mitochondrially distinct lineage previously characterized in resident Taiwanese populations rather than to the well-known nominate migratory lineage. This is the first official record of this species in Singapore and represents a considerable range extension for the species. Two out of four Singaporean samples and the Brunei sample were identified as Northern Boobooks. PCR of cytochrome- b and Sanger sequencing of Ninox samples from Singapore and Brunei were used to determine sample identity.
Overlap in ranges during migration and morphological similarity have led to difficulties in distinguishing the Brown Boobook from the Northern Boobook. Here's another segment of my avi stacking using your program and tweeked a bit in PS.The Brown Hawk Owl complex is said to consist of three species, the Brown Boobook ( Ninox scutulata), the Chocolate Boobook ( Ninox randi) and the Northern Boobook ( Ninox japonica), which includes the nominate migratory lineage Ninox japonica japonica and a mitochondrially distinct lineage of taxonomically uncertain status that has been recorded year-round at least in Taiwan. BMP, i tried to open it in PS.i got an error "Could not open xxx.bpm because the file-format module could not be parsed".I had to open it in another program, save it as a BMP again, and then PS could open it.great work regardless! One more thing.when I save the result as a. I now you can select quality percentage but I was guessing as to what to set it at so as to disregard a certain frame i wanted to discard. I'd like to see how many frames are included in the final stack based on the options chosen.i got a word "result" out of 6 frames when done.also would be great to some day be able to manually discard frames you don't want. Yeah.i've been doing that thx.but its pretty primitive Its almost impossible to use it unless your images are suberbly clear but its better than nothing most times.sometimes its just a case of getting lucky and picking the right spot.Īmateur.I tried that works pretty darn good.
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