Knowledge (XXG)

Bracken Cave

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160:). These bats fly as much as 1,000 miles (1,600 km) from Mexico to this cave. After arriving in the cave, the migrant mothers give birth to pups. An astounding 500 pups have been recorded clinging to 1-square-foot (0.093 m) of the cave walls—an ingenious way for keeping warm; the temperature is around 102 °F (39 °C). The city of San Antonio, a local developer, and conservation groups reached agreement on "a $ 20 million deal" in 2014, to ensure that human development would not encroach on the bats, and that the sky near their cave would remain dark at night. 66: 57: 81: 188:
While the Bracken Cave bat roost is often estimated at 20 million, the true number of bats is unknown due to unreliable counting methods. An animal behavior expert named Leonard Ireland, who researched the bats at Bracken Cave in the 1960s and 1970s, once said the clouds of bats emerging from the
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From March to October, the bats at Bracken Cave emerge between 6 and 8 p.m. flying southeast on a collision course with bugs such as cotton bollworth moths and army cut-worm moths being pushed away from crops southwest by winds.
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The bats consume several tons of insects per night, which according to research conducted in 2006, saves cotton farmers in south central Texas about equivalent to $ 1,118,429 in 2023 a year.
126:. Access to the cave is restricted to protect the habitat of the resident bats. Bat Conservation International offers evening guided tours to the cave to watch the bats emerge from the cave. 84: 408: 290: 360: 418: 256: 111:. The 100-foot (30 m)-wide crescent shaped opening to the cave lies at the bottom of a sinkhole, formed when the roof of the cave collapsed. 334:"Night Flying Missions vs. Mexican Free-Tailed Bats - Twenty million tiny bats living 11 miles from Randolph pose a giant risk to base aircraft" 373: 305: 403: 103:
roost in the cave from March to October making it the largest known concentration of mammals. The cave is located in southern
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The Bracken Cave is the destination every March or April of over 20,000,000 Mexican free-tailed bats (
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series episode "Freaks of the Sky." It was also featured in the first pilot episode of
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is the summer home to the largest colony of bats in the world. An estimated 20 million
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Bracken Cave has been featured in the media several times since its discovery. The
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cave were up to "30 miles (48 km) long and 20 miles (32 km) wide."
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The cave and undeveloped 1,521 acres (616 ha) around it are owned by
306:"In Texas, The World's Biggest Bat Colony Is Saved From City Sprawl" 162: 231:"Preserving Bracken Cave and the largest bat colony in the world" 92:
Bats emerging from Bracken Cave on the evening of 17 June 2017
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Grove, Noel (December 1988). "Quietly Conserving Nature".
327: 325: 167:A Mexican free-tailed bat (Tadarida brasiliensis) 259:. National Geographic Society. Archived from 8: 374:Ann W. Richards Congress Avenue Bridge#Bats 204: 202: 79: 198: 409:Protected areas of Comal County, Texas 138:channel included Bracken Cave in the 7: 293:from the original on June 6, 2021. 14: 363:at Bat Conservation International 74:Bracken Bat Cave by day and night 419:Landforms of Comal County, Texas 237:. Bat Conservation International 64: 55: 16:Cave in Comal County, Texas, US 257:"Amazing Bats of Bracken Cave" 235:Bat Conservation International 120:Bat Conservation International 1: 283:"The Battle for Bracken Cave" 332:Salinas, Alex (2013-10-12). 304:Page, Eileen (2014-11-01). 440: 404:Nature reserves in Texas 136:National Geographic Wild 101:Mexican free-tailed bats 287:The Nature Conservancy 168: 124:The Nature Conservancy 107:, outside the city of 93: 37:29.68715°N 98.352606°W 166: 158:Tadarida brasiliensis 91: 338:Torch - US Air Force 42:29.68715; -98.352606 212:National Geographic 105:Comal County, Texas 33: /  424:Texas Hill Country 169: 94: 184:Unknown bat count 89: 431: 361:Bracken Bat Cave 348: 347: 345: 344: 329: 320: 319: 317: 316: 301: 295: 294: 279: 273: 272: 270: 268: 253: 247: 246: 244: 242: 227: 221: 220: 206: 172:Farming benefits 140:World's Weirdest 90: 68: 59: 48: 47: 45: 44: 43: 38: 34: 31: 30: 29: 26: 439: 438: 434: 433: 432: 430: 429: 428: 394:Limestone caves 379: 378: 370: 357: 352: 351: 342: 340: 331: 330: 323: 314: 312: 303: 302: 298: 281: 280: 276: 266: 264: 263:on May 13, 2010 255: 254: 250: 240: 238: 229: 228: 224: 208: 207: 200: 195: 186: 174: 154: 132: 80: 78: 77: 76: 75: 71: 70: 69: 61: 60: 41: 39: 35: 32: 27: 24: 22: 20: 19: 17: 12: 11: 5: 437: 435: 427: 426: 421: 416: 411: 406: 401: 396: 391: 389:Caves of Texas 381: 380: 377: 376: 369: 366: 365: 364: 356: 355:External links 353: 350: 349: 321: 296: 274: 248: 222: 197: 196: 194: 191: 185: 182: 173: 170: 153: 150: 131: 128: 73: 72: 63: 62: 54: 53: 52: 51: 50: 15: 13: 10: 9: 6: 4: 3: 2: 436: 425: 422: 420: 417: 415: 412: 410: 407: 405: 402: 400: 397: 395: 392: 390: 387: 386: 384: 375: 372: 371: 367: 362: 359: 358: 354: 339: 335: 328: 326: 322: 311: 307: 300: 297: 292: 288: 284: 278: 275: 262: 258: 252: 249: 236: 232: 226: 223: 218: 214: 213: 205: 203: 199: 192: 190: 183: 181: 178: 171: 165: 161: 159: 151: 149: 147: 146: 141: 137: 129: 127: 125: 121: 117: 116:Austin, Texas 112: 110: 106: 102: 98: 67: 58: 49: 46: 341:. Retrieved 337: 313:. Retrieved 309: 299: 286: 277: 265:. Retrieved 261:the original 251: 241:24 September 239:. Retrieved 234: 225: 216: 210: 187: 179: 175: 157: 155: 143: 139: 133: 113: 97:Bracken Cave 96: 95: 18: 109:San Antonio 40: / 399:Wild caves 383:Categories 343:2015-05-17 315:2014-11-03 193:References 145:Dirty Jobs 28:98°21′09″W 25:29°41′14″N 219:(6): 822. 152:Bat haven 414:Tadarida 368:See also 291:Archived 130:In media 267:1 March 118:-based 269:2013 243:2020 310:NPR 217:174 385:: 336:. 324:^ 308:. 289:. 285:. 233:. 215:. 201:^ 148:. 346:. 318:. 271:. 245:.

Index

29°41′14″N 98°21′09″W / 29.68715°N 98.352606°W / 29.68715; -98.352606


Mexican free-tailed bats
Comal County, Texas
San Antonio
Austin, Texas
Bat Conservation International
The Nature Conservancy
National Geographic Wild
Dirty Jobs



National Geographic
"Preserving Bracken Cave and the largest bat colony in the world"
"Amazing Bats of Bracken Cave"
the original
"The Battle for Bracken Cave"
Archived
"In Texas, The World's Biggest Bat Colony Is Saved From City Sprawl"


"Night Flying Missions vs. Mexican Free-Tailed Bats - Twenty million tiny bats living 11 miles from Randolph pose a giant risk to base aircraft"
Bracken Bat Cave
Ann W. Richards Congress Avenue Bridge#Bats
Categories
Caves of Texas
Limestone caves
Wild caves

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