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Summary
Descriptionকালাকপাল বনমালী (Sitta frontalis), সুন্দরবন, বাংলাদেশ.jpg | বাংলা: কালাকপাল বনমালী (Sitta frontalis) বা Velvet-fronted nuthatch বাংলাদেশের সুন্দরবন ও উপকূলীয় অঞ্চলের ঘন বনাঞ্চলে দেখা যায়। এদের দেহ ছোট ও ছিপছিপে, লম্বায় প্রায় ১২ সেন্টিমিটার। মাথার সামনে কালো মখমলের মতো আবরণ থাকে, যা এদের নামের উৎস। দেহের উপরের অংশ নীলচে-বেগুনি, তলপেট ফ্যাকাশে হলুদ বা সাদা এবং চোখের চারপাশে উজ্জ্বল লাল রঙের ছোঁয়া দেখা যায়। এরা সাধারণত গাছের বাকল ধরে উল্টো হয়ে হাঁটতে পারে, যা এদের অন্যতম বৈশিষ্ট্য। পোকামাকড়, ছোট ফল ও গাছের কচি কুঁড়ি এদের প্রধান খাবার। সাধারণত জোড়ায় বা ছোট দলে চলাফেরা করে এবং কিচিরমিচির শব্দে ডাকতে থাকে। সুন্দরবন ও উপকূলীয় বনের অবক্ষয়ের কারণে এদের আবাসস্থল সংকুচিত হচ্ছে। পরিবেশের ভারসাম্য রক্ষায় এদের সংরক্ষণ জরুরি, কারণ এরা বনজ উদ্ভিদের স্বাস্থ্যকর বৃদ্ধিতে সহায়ক ভূমিকা রাখে।English: Velvet-fronted nuthatch (Sitta frontalis), Sundarbans, Bangladesh. |
Date | |
Source | Own work |
Author | Rusho127 |
Licensing
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18 March 2020
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Date/Time | Thumbnail | Dimensions | User | Comment | |
---|---|---|---|---|---|
current | 11:25, 30 April 2025 | ![]() | 1,847 × 2,463 (2.65 MB) | Moheen | Cropped 50 % horizontally, 50 % areawise using CropTool with precise mode. |
06:36, 29 March 2025 | ![]() | 3,694 × 2,463 (4.16 MB) | Rusho127 | Uploaded own work with UploadWizard |
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Metadata
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Camera manufacturer | NIKON CORPORATION |
---|---|
Camera model | NIKON D500 |
Exposure time | 1/400 sec (0.0025) |
F Number | f/8 |
ISO speed rating | 500 |
Date and time of data generation | 03:00, 18 March 2020 |
Lens focal length | 500 mm |
Width | 3,694 px |
Height | 2,463 px |
Bits per component |
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Pixel composition | RGB |
Orientation | Normal |
Number of components | 3 |
Horizontal resolution | 300 dpi |
Vertical resolution | 300 dpi |
Software used | Adobe Photoshop 26.4 (Windows) |
File change date and time | 11:26, 29 March 2025 |
Exposure Program | Aperture priority |
Exif version | 2.31 |
Date and time of digitizing | 03:00, 18 March 2020 |
APEX shutter speed | 8.643856 |
APEX aperture | 6 |
APEX exposure bias | −1 |
Maximum land aperture | 5 APEX (f/5.66) |
Metering mode | Spot |
Light source | Fine weather |
Flash | Flash did not fire |
DateTime subseconds | 54 |
DateTimeOriginal subseconds | 54 |
DateTimeDigitized subseconds | 54 |
Color space | Uncalibrated |
Focal plane X resolution | 2,360.8599243164 |
Focal plane Y resolution | 2,360.8599243164 |
Focal plane resolution unit | 3 |
Sensing method | One-chip color area sensor |
File source | Digital still camera |
Scene type | A directly photographed image |
Custom image processing | Normal process |
Exposure mode | Auto exposure |
White balance | Manual white balance |
Focal length in 35 mm film | 750 mm |
Scene capture type | Standard |
Scene control | None |
Contrast | Normal |
Saturation | Normal |
Sharpness | Normal |
Subject distance range | Unknown |
Serial number of camera | 8906368 |
Lens used | 200.0-500.0 mm f/5.6 |
Rating (out of 5) | 0 |
Date metadata was last modified | 17:26, 29 March 2025 |
Unique ID of original document | DE1DB3273D73F50E435B33C0ADCA3B5D |
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